7a-8-3a=8

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Solution for 7a-8-3a=8 equation: 


Simplifying
7a + -8 + -3a = 8

Reorder the terms:
-8 + 7a + -3a = 8

Combine like terms: 7a + -3a = 4a
-8 + 4a = 8

Solving
-8 + 4a = 8

Solving for variable 'a'.

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

Add '8' to each side of the equation.
-8 + 8 + 4a = 8 + 8

Combine like terms: -8 + 8 = 0
0 + 4a = 8 + 8
4a = 8 + 8

Combine like terms: 8 + 8 = 16
4a = 16

Divide each side by '4'.
a = 4

Simplifying
a = 4

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