-7(15-a)=56

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Solution for -7(15-a)=56 equation: 


Simplifying
-7(15 + -1a) = 56
(15 * -7 + -1a * -7) = 56
(-105 + 7a) = 56

Solving
-105 + 7a = 56

Solving for variable 'a'.

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

Add '105' to each side of the equation.
-105 + 105 + 7a = 56 + 105

Combine like terms: -105 + 105 = 0
0 + 7a = 56 + 105
7a = 56 + 105

Combine like terms: 56 + 105 = 161
7a = 161

Divide each side by '7'.
a = 23

Simplifying
a = 23

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