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natali 33 [55]
3 years ago
7

How to solve y=x+1 5x+3y=51

Mathematics
1 answer:
adoni [48]3 years ago
7 0

Answer:

x=6 y=7

(6,7)

Step-by-step explanation:

y=x+1  5x+3y=51

to solve this you can use the substitution method or anotherone i forgot the name of. so in with that being said, the substitution method is the wa to go.

start with the first equasion

5x+3y=51

substitute

5x+3(x+1)=51

distribute

5x+3x+3=51

add like terms

8x+3=51

solve equasion

8x=48

x=6

now onto the next equasion

y=x+1

substitute

y=6+1

add like terms

y=7

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Solve this equation<br>5(-7x-3)- 8x=-230​
Brut [27]

Simplifying

5(7x + -3) = 230

Reorder the terms:

5(-3 + 7x) = 230

(-3 * 5 + 7x * 5) = 230

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Solving

-15 + 35x = 230

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '15' to each side of the equation.

-15 + 15 + 35x = 230 + 15

Combine like terms: -15 + 15 = 0

0 + 35x = 230 + 15

35x = 230 + 15

Combine like terms: 230 + 15 = 245

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Divide each side by '35'.

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5 0
3 years ago
a CD usally sells for 14.00 if the CD is 30% off and sales tax7% whats the total price of the price of the CD including tax
Ostrovityanka [42]
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