-5a+15=7-7a

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Solution for -5a+15=7-7a equation:


Simplifying
-5a + 15 = 7 + -7a

Reorder the terms:
15 + -5a = 7 + -7a

Solving
15 + -5a = 7 + -7a

Solving for variable 'a'.

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

Add '7a' to each side of the equation.
15 + -5a + 7a = 7 + -7a + 7a

Combine like terms: -5a + 7a = 2a
15 + 2a = 7 + -7a + 7a

Combine like terms: -7a + 7a = 0
15 + 2a = 7 + 0
15 + 2a = 7

Add '-15' to each side of the equation.
15 + -15 + 2a = 7 + -15

Combine like terms: 15 + -15 = 0
0 + 2a = 7 + -15
2a = 7 + -15

Combine like terms: 7 + -15 = -8
2a = -8

Divide each side by '2'.
a = -4

Simplifying
a = -4

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