2a-12=7a+8

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Solution for 2a-12=7a+8 equation:


Simplifying
2a + -12 = 7a + 8

Reorder the terms:
-12 + 2a = 7a + 8

Reorder the terms:
-12 + 2a = 8 + 7a

Solving
-12 + 2a = 8 + 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.
-12 + 2a + -7a = 8 + 7a + -7a

Combine like terms: 2a + -7a = -5a
-12 + -5a = 8 + 7a + -7a

Combine like terms: 7a + -7a = 0
-12 + -5a = 8 + 0
-12 + -5a = 8

Add '12' to each side of the equation.
-12 + 12 + -5a = 8 + 12

Combine like terms: -12 + 12 = 0
0 + -5a = 8 + 12
-5a = 8 + 12

Combine like terms: 8 + 12 = 20
-5a = 20

Divide each side by '-5'.
a = -4

Simplifying
a = -4

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