-3a+9+8a=4a-2a

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Solution for -3a+9+8a=4a-2a equation:


Simplifying
-3a + 9 + 8a = 4a + -2a

Reorder the terms:
9 + -3a + 8a = 4a + -2a

Combine like terms: -3a + 8a = 5a
9 + 5a = 4a + -2a

Combine like terms: 4a + -2a = 2a
9 + 5a = 2a

Solving
9 + 5a = 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
9 + 5a + -2a = 2a + -2a

Combine like terms: 5a + -2a = 3a
9 + 3a = 2a + -2a

Combine like terms: 2a + -2a = 0
9 + 3a = 0

Add '-9' to each side of the equation.
9 + -9 + 3a = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 3a = 0 + -9
3a = 0 + -9

Combine like terms: 0 + -9 = -9
3a = -9

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

Simplifying
a = -3

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