3a-7a=8a-12

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


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

Combine like terms: 3a + -7a = -4a
-4a = 8a + -12

Reorder the terms:
-4a = -12 + 8a

Solving
-4a = -12 + 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.
-4a + -8a = -12 + 8a + -8a

Combine like terms: -4a + -8a = -12a
-12a = -12 + 8a + -8a

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

Divide each side by '-12'.
a = 1

Simplifying
a = 1

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