57=17-8a

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Solution for 57=17-8a equation:


Simplifying
57 = 17 + -8a

Solving
57 = 17 + -8a

Solving for variable 'a'.

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

Add '8a' to each side of the equation.
57 + 8a = 17 + -8a + 8a

Combine like terms: -8a + 8a = 0
57 + 8a = 17 + 0
57 + 8a = 17

Add '-57' to each side of the equation.
57 + -57 + 8a = 17 + -57

Combine like terms: 57 + -57 = 0
0 + 8a = 17 + -57
8a = 17 + -57

Combine like terms: 17 + -57 = -40
8a = -40

Divide each side by '8'.
a = -5

Simplifying
a = -5

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