2a+3-7=12+4a

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Solution for 2a+3-7=12+4a equation:


Simplifying
2a + 3 + -7 = 12 + 4a

Reorder the terms:
3 + -7 + 2a = 12 + 4a

Combine like terms: 3 + -7 = -4
-4 + 2a = 12 + 4a

Solving
-4 + 2a = 12 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
-4 + 2a + -4a = 12 + 4a + -4a

Combine like terms: 2a + -4a = -2a
-4 + -2a = 12 + 4a + -4a

Combine like terms: 4a + -4a = 0
-4 + -2a = 12 + 0
-4 + -2a = 12

Add '4' to each side of the equation.
-4 + 4 + -2a = 12 + 4

Combine like terms: -4 + 4 = 0
0 + -2a = 12 + 4
-2a = 12 + 4

Combine like terms: 12 + 4 = 16
-2a = 16

Divide each side by '-2'.
a = -8

Simplifying
a = -8

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