7-8a=23

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Solution for 7-8a=23 equation: 


Simplifying
7 + -8a = 23

Solving
7 + -8a = 23

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 = 23 + -7

Combine like terms: 7 + -7 = 0
0 + -8a = 23 + -7
-8a = 23 + -7

Combine like terms: 23 + -7 = 16
-8a = 16

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

Simplifying
a = -2

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