12a+4-3a+15=7

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Solution for 12a+4-3a+15=7 equation:


Simplifying
12a + 4 + -3a + 15 = 7

Reorder the terms:
4 + 15 + 12a + -3a = 7

Combine like terms: 4 + 15 = 19
19 + 12a + -3a = 7

Combine like terms: 12a + -3a = 9a
19 + 9a = 7

Solving
19 + 9a = 7

Solving for variable 'a'.

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

Add '-19' to each side of the equation.
19 + -19 + 9a = 7 + -19

Combine like terms: 19 + -19 = 0
0 + 9a = 7 + -19
9a = 7 + -19

Combine like terms: 7 + -19 = -12
9a = -12

Divide each side by '9'.
a = -1.333333333

Simplifying
a = -1.333333333

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