-3a+8=7a-12

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Solution for -3a+8=7a-12 equation:


Simplifying
-3a + 8 = 7a + -12

Reorder the terms:
8 + -3a = 7a + -12

Reorder the terms:
8 + -3a = -12 + 7a

Solving
8 + -3a = -12 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
8 + -3a + -7a = -12 + 7a + -7a

Combine like terms: -3a + -7a = -10a
8 + -10a = -12 + 7a + -7a

Combine like terms: 7a + -7a = 0
8 + -10a = -12 + 0
8 + -10a = -12

Add '-8' to each side of the equation.
8 + -8 + -10a = -12 + -8

Combine like terms: 8 + -8 = 0
0 + -10a = -12 + -8
-10a = -12 + -8

Combine like terms: -12 + -8 = -20
-10a = -20

Divide each side by '-10'.
a = 2

Simplifying
a = 2

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