7a+3+8a=12-28

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Solution for 7a+3+8a=12-28 equation:


Simplifying
7a + 3 + 8a = 12 + -28

Reorder the terms:
3 + 7a + 8a = 12 + -28

Combine like terms: 7a + 8a = 15a
3 + 15a = 12 + -28

Combine like terms: 12 + -28 = -16
3 + 15a = -16

Solving
3 + 15a = -16

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + -3 + 15a = -16 + -3

Combine like terms: 3 + -3 = 0
0 + 15a = -16 + -3
15a = -16 + -3

Combine like terms: -16 + -3 = -19
15a = -19

Divide each side by '15'.
a = -1.266666667

Simplifying
a = -1.266666667

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