3x+15-7x=-7 solve for x

Question

Ximena Alexander

Mathematics

31 May, 10:10

3x+15-7x=-7 solve for x

+1

Answers (2)

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Brylee Irwin · Answer 1

3x+15-7x=-7

Simplify:

3x+15-7x=-7

3x+15+-7x=-7

(3x+-7x) + (15) = - 7 (Combine Like Terms)

-4x+15=-7

Subtract 15 from both sides.

-4x+15-15=-7-15

-4x=-22

Divide both sides by - 4.

-4x/-4=-22/-4

x=11/2

Pippy · Answer 2

You can combine like terms: (3x and - 7x)

-4x+15=-7

now, we subtract 15 from both sides:

-4x=-22

finally, we divide both sides by - 4

x=5.5 or 5 1/2