12+10=5a+7-8a

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Solution for 12+10=5a+7-8a equation:


Simplifying
12 + 10 = 5a + 7 + -8a

Combine like terms: 12 + 10 = 22
22 = 5a + 7 + -8a

Reorder the terms:
22 = 7 + 5a + -8a

Combine like terms: 5a + -8a = -3a
22 = 7 + -3a

Solving
22 = 7 + -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.
22 + 3a = 7 + -3a + 3a

Combine like terms: -3a + 3a = 0
22 + 3a = 7 + 0
22 + 3a = 7

Add '-22' to each side of the equation.
22 + -22 + 3a = 7 + -22

Combine like terms: 22 + -22 = 0
0 + 3a = 7 + -22
3a = 7 + -22

Combine like terms: 7 + -22 = -15
3a = -15

Divide each side by '3'.
a = -5

Simplifying
a = -5

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