12-5a=-8a+15

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Solution for 12-5a=-8a+15 equation:


Simplifying
12 + -5a = -8a + 15

Reorder the terms:
12 + -5a = 15 + -8a

Solving
12 + -5a = 15 + -8a

Solving for variable 'a'.

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

Add '8a' to each side of the equation.
12 + -5a + 8a = 15 + -8a + 8a

Combine like terms: -5a + 8a = 3a
12 + 3a = 15 + -8a + 8a

Combine like terms: -8a + 8a = 0
12 + 3a = 15 + 0
12 + 3a = 15

Add '-12' to each side of the equation.
12 + -12 + 3a = 15 + -12

Combine like terms: 12 + -12 = 0
0 + 3a = 15 + -12
3a = 15 + -12

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

Divide each side by '3'.
a = 1

Simplifying
a = 1

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