7-5=-a-7

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


Simplifying
7 + -5 = -1a + -7

Combine like terms: 7 + -5 = 2
2 = -1a + -7

Reorder the terms:
2 = -7 + -1a

Solving
2 = -7 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
2 + a = -7 + -1a + a

Combine like terms: -1a + a = 0
2 + a = -7 + 0
2 + a = -7

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

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

Combine like terms: -7 + -2 = -9
a = -9

Simplifying
a = -9

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