1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vikentia [17]
2 years ago
6

When x = 2,what is the value of y for the equation – 3x + 2y = 10?

Mathematics
2 answers:
dexar [7]2 years ago
8 0

Answer:

\huge{ \boxed{ \bold{ \tt{y = 8}}}}

☪ What is the value of y for the equation given below when x = 2 ?

  • -3x + 2y = 10

☪ Step - by - step explanation :

  • \sf{ - 3x + 2y = 10}

plug the value of x ( i.e 2 )

➳ \sf{ - 3 \times 2 + 2y = 10}

Remember : Multiplying or dividing a negative integer by a positive integer gives a negative integer.

➳ \sf{ - 6 + 2y = 10}

Move 6 to right hand side and change it's sign

➳ \sf{2y = 10 + 6}

Add the numbers : 10 and 6

➳ \sf{2y = 16}

Divide both sides by 2

➳ \sf{ \frac{2y}{2}  =  \frac{16}{2}}

➳ \boxed{ \sf{y = 8}}

——————————————————

✏ Now, let's check whether the value of y is 8 or not !

✑ Verification :

\sf{ - 3x + 2y = 10}

→ \sf{ - 3 \times 2 + 2 \times 8 = 10}

→ \sf{ - 6 + 16 = 10}

→ \sf{10 = 10}

L.H.S = R.H.S ( Hence , the value of y is 8 . )

——————————————————

☞ Additional Info :

✒ Sign rules of addition and subtraction of integers:

  • The positive integers are always added and posses the positive ( + ) sign.
  • The negative integers are always added but posses the negative ( - ) sign.
  • The negative and positive integers are always subtracted but posses the sign of the bigger integer.

✒ Sign rules of multiplication and division of integers :

  • Multiplying or dividing positive integers gives a positive integer.
  • Multiplying or dividing positive integer by any negative integer gives a negative integer.
  • Multiplying or dividing a negative integer by a positive integer gives a negative integer.
  • Multiplying or dividing a negative integer by a negative integer gives a positive integer.

✒ Rules for solving an equation :

  • If any equation contains fractions , multiply each term by the LCM of denominators.
  • Remove the brackets , if any.
  • Collect the term with the variable to the left hand side and constant terms to the right side by changing their signs ' + ' into ' - ' and ' - ' into ' + '.
  • Simplify and get the single term on each side.
  • Divide each side by the coefficient of variable and then get the value of variable.

Hope I helped!

Have a wonderful time ツ

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

Cerrena [4.2K]2 years ago
6 0

Answer:

y=x+5

Step-by-step explanation:

You might be interested in
18- (-3) ^3 +3•2 what would be the answer and how
LUCKY_DIMON [66]
-3^3=9
18-9+3•2
9+3•2
12•2
24
8 0
2 years ago
I need help pleaseew
Andrews [41]

Answer:

acer hope this helps (:

3 0
3 years ago
HELP PLEASEEE with steps
zysi [14]
<h3>Answer: Choice C) 421.9</h3>

=======================================

Explanation:

You're on the right track. You wrote down the proper expression to get the final answer, assuming you meant to write 75/4 as the third term inside the parenthesis. This works because each time you cut the side length in half to get each smaller triangle's side. The 3 is because there are 3 sides for each of the triangles. Much of this I have a feeling you already know as you wrote down the expression on the page, though I'm not 100% sure of your mindset. Computing this expression leads to 421.875 which rounds to 421.9

note: an alternative is to write 3*75 + 3*75/2 + 3*75/4 + 3*75/8, though that is more work. It's better to have that 3 factored out.

8 0
3 years ago
Please show work<br> 26 lbs of onion cost $127.40. How much would 18 lbs cost\
Irina18 [472]
127.40/26 = $4.90 per pound
18 * 4.9 = $88.20
It would cost $88.20
5 0
2 years ago
The weight limit for a bookshelf is 25 pounds. Niyant has 60 books to put on the shelf. Each book weighs 0.45 kilograms. Can Niy
Debora [2.8K]

Answer:

no she cant she can fit 20 of them

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • How do you graph D? PLz explain. HELPPPPPPPPPPPPPPP
    14·2 answers
  • Walter buys a bus pass for $30. Every time he rides the bus, money is deducted from the value of the pass . He rode 12 times and
    10·1 answer
  • What are the next two numbers and what's the pattern?
    14·2 answers
  • Factor 3x2 - x - 10.
    11·2 answers
  • Umm could you help me with this
    8·2 answers
  • Carl's Comic Books bought a comic book from a wholesaler for $2.50. He marked the book up
    8·1 answer
  • The sum of 6 times a number and 8 times another number is 12. The difference of those numbers is 9. What are the two numbers
    7·1 answer
  • Show your work:<br> (please dont answer with a link)
    15·1 answer
  • Simplify the equation and show work!!!!
    10·1 answer
  • Which equations are true equations? Select all correct answers. 48 ÷ 8 + 2³ = 5 + 3²/ 48 ÷ 8 + 2³ = 5 + 3² / 15052=30−42−12 150
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!