13(a-9)=-7-6

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Solution for 13(a-9)=-7-6 equation:


Simplifying
13(a + -9) = -7 + -6

Reorder the terms:
13(-9 + a) = -7 + -6
(-9 * 13 + a * 13) = -7 + -6
(-117 + 13a) = -7 + -6

Combine like terms: -7 + -6 = -13
-117 + 13a = -13

Solving
-117 + 13a = -13

Solving for variable 'a'.

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

Add '117' to each side of the equation.
-117 + 117 + 13a = -13 + 117

Combine like terms: -117 + 117 = 0
0 + 13a = -13 + 117
13a = -13 + 117

Combine like terms: -13 + 117 = 104
13a = 104

Divide each side by '13'.
a = 8

Simplifying
a = 8

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