8a-7=57

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Solution for 8a-7=57 equation: 


Simplifying
8a + -7 = 57

Reorder the terms:
-7 + 8a = 57

Solving
-7 + 8a = 57

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 = 57 + 7

Combine like terms: -7 + 7 = 0
0 + 8a = 57 + 7
8a = 57 + 7

Combine like terms: 57 + 7 = 64
8a = 64

Divide each side by '8'.
a = 8

Simplifying
a = 8

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