15(a-4)=-7-8

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Solution for 15(a-4)=-7-8 equation:


Simplifying
15(a + -4) = -7 + -8

Reorder the terms:
15(-4 + a) = -7 + -8
(-4 * 15 + a * 15) = -7 + -8
(-60 + 15a) = -7 + -8

Combine like terms: -7 + -8 = -15
-60 + 15a = -15

Solving
-60 + 15a = -15

Solving for variable 'a'.

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

Add '60' to each side of the equation.
-60 + 60 + 15a = -15 + 60

Combine like terms: -60 + 60 = 0
0 + 15a = -15 + 60
15a = -15 + 60

Combine like terms: -15 + 60 = 45
15a = 45

Divide each side by '15'.
a = 3

Simplifying
a = 3

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