7-8a=-a-8a

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Solution for 7-8a=-a-8a equation:


Simplifying
7 + -8a = -1a + -8a

Combine like terms: -1a + -8a = -9a
7 + -8a = -9a

Solving
7 + -8a = -9a

Solving for variable 'a'.

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

Add '9a' to each side of the equation.
7 + -8a + 9a = -9a + 9a

Combine like terms: -8a + 9a = 1a
7 + 1a = -9a + 9a

Combine like terms: -9a + 9a = 0
7 + 1a = 0

Add '-7' to each side of the equation.
7 + -7 + 1a = 0 + -7

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

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

Divide each side by '1'.
a = -7

Simplifying
a = -7

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