-8a-(-7)=(-9)

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Solution for -8a-(-7)=(-9) equation:


Simplifying
-8a + -1(-7) = (-9)

Multiply -1 * -7
-8a + 7 = (-9)

Reorder the terms:
7 + -8a = (-9)
7 + -8a = -9

Solving
7 + -8a = -9

Solving for variable 'a'.

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

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

Combine like terms: 7 + -7 = 0
0 + -8a = -9 + -7
-8a = -9 + -7

Combine like terms: -9 + -7 = -16
-8a = -16

Divide each side by '-8'.
a = 2

Simplifying
a = 2

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