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
Katarina [22]
3 years ago
11

Simplify -2x+7=15, i need help understanding why it is -4

Mathematics
1 answer:
yulyashka [42]3 years ago
3 0

Answer:

-4

Step-by-step explanation:

Step 1: Subtract 7 from both sides.

−2x+7−7=15−7

−2x=8

Step 2: Divide both sides by -2.

−2x

−2

=

8

−2

x=−4

You might be interested in
Help me please... I have a lot more things to do and I wanna get this done.
lianna [129]

Answer:

-6

Step-by-step explanation:

count

7 0
3 years ago
Read 2 more answers
A 10-ft-long slide is attached to a deck that is 5 ft high. Find the distance from the bottom of the deck to the bottom of the s
drek231 [11]
Using Pythagorean theorem, the answer should be 8.7ft
6 0
3 years ago
Question is shown in the image
astraxan [27]
Your average rate of change for the interval is 3/2 or 1.5, so that should be your answer.
6 0
3 years ago
What angle is is letter C?
stiv31 [10]

Answer:

The angle measure for angle c is 138 degrees

8 0
3 years ago
Read 2 more answers
Andrew buys books and videos in a store. He uses the expression 4b + 8v to find the cost of what he is buying, where b is the nu
7nadin3 [17]

Answer:

68

Step-by-step explanation:

1) Plug In (when you plug in you replace the defined variable with the number given. usually you have to find the numbers to plug in but since they're already given to you you just plug them in.) 4(3) + 8(7)=T   T= total cost

2) Multiply 4*3=12 8*7=56

3) Add 12+56=68

4) <u>T=68</u>

7 0
3 years ago
Other questions:
  • What is the answer to 15 divided by 9375
    11·1 answer
  • What is the distance between points (9, 4) and (–3, 4) on a coordinate plane?
    10·1 answer
  • Simplify the expression (2x − 9)(x + 6).
    11·2 answers
  • What is the inverse of f(x)=4x+3 ?
    7·1 answer
  • Solvex State the theorem that may be applied to solve the problem Oven G biedts 26​
    5·1 answer
  • When x is between -4 and -1, is the function increasing or decreasing
    6·1 answer
  • (A) Given that the expression​​ x^3-ax^2+bx+c leaves the same ​remainder when divided by x+1 or x-2, find a in term of b.
    10·1 answer
  • Give the quadrant each set of coordinates lies in<br><br> 1 , 5<br> -2 , 4 <br> -3 , 2 <br> 4 , -4
    15·2 answers
  • I really need help i keep getting confused
    10·1 answer
  • Simplify using basic trigonometric identities
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!