3a-7=57-5a

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Solution for 3a-7=57-5a equation:


Simplifying
3a + -7 = 57 + -5a

Reorder the terms:
-7 + 3a = 57 + -5a

Solving
-7 + 3a = 57 + -5a

Solving for variable 'a'.

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

Add '5a' to each side of the equation.
-7 + 3a + 5a = 57 + -5a + 5a

Combine like terms: 3a + 5a = 8a
-7 + 8a = 57 + -5a + 5a

Combine like terms: -5a + 5a = 0
-7 + 8a = 57 + 0
-7 + 8a = 57

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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