13(a-7)=-5-8

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Solution for 13(a-7)=-5-8 equation:


Simplifying
13(a + -7) = -5 + -8

Reorder the terms:
13(-7 + a) = -5 + -8
(-7 * 13 + a * 13) = -5 + -8
(-91 + 13a) = -5 + -8

Combine like terms: -5 + -8 = -13
-91 + 13a = -13

Solving
-91 + 13a = -13

Solving for variable 'a'.

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

Add '91' to each side of the equation.
-91 + 91 + 13a = -13 + 91

Combine like terms: -91 + 91 = 0
0 + 13a = -13 + 91
13a = -13 + 91

Combine like terms: -13 + 91 = 78
13a = 78

Divide each side by '13'.
a = 6

Simplifying
a = 6

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