-3a-7=-12-2a

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Solution for -3a-7=-12-2a equation:


Simplifying
-3a + -7 = -12 + -2a

Reorder the terms:
-7 + -3a = -12 + -2a

Solving
-7 + -3a = -12 + -2a

Solving for variable 'a'.

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

Add '2a' to each side of the equation.
-7 + -3a + 2a = -12 + -2a + 2a

Combine like terms: -3a + 2a = -1a
-7 + -1a = -12 + -2a + 2a

Combine like terms: -2a + 2a = 0
-7 + -1a = -12 + 0
-7 + -1a = -12

Add '7' to each side of the equation.
-7 + 7 + -1a = -12 + 7

Combine like terms: -7 + 7 = 0
0 + -1a = -12 + 7
-1a = -12 + 7

Combine like terms: -12 + 7 = -5
-1a = -5

Divide each side by '-1'.
a = 5

Simplifying
a = 5

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