2a+12=3a-31

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Solution for 2a+12=3a-31 equation:


Simplifying
2a + 12 = 3a + -31

Reorder the terms:
12 + 2a = 3a + -31

Reorder the terms:
12 + 2a = -31 + 3a

Solving
12 + 2a = -31 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
12 + 2a + -3a = -31 + 3a + -3a

Combine like terms: 2a + -3a = -1a
12 + -1a = -31 + 3a + -3a

Combine like terms: 3a + -3a = 0
12 + -1a = -31 + 0
12 + -1a = -31

Add '-12' to each side of the equation.
12 + -12 + -1a = -31 + -12

Combine like terms: 12 + -12 = 0
0 + -1a = -31 + -12
-1a = -31 + -12

Combine like terms: -31 + -12 = -43
-1a = -43

Divide each side by '-1'.
a = 43

Simplifying
a = 43

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