-4a+30+9a=3a-8a

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Solution for -4a+30+9a=3a-8a equation:


Simplifying
-4a + 30 + 9a = 3a + -8a

Reorder the terms:
30 + -4a + 9a = 3a + -8a

Combine like terms: -4a + 9a = 5a
30 + 5a = 3a + -8a

Combine like terms: 3a + -8a = -5a
30 + 5a = -5a

Solving
30 + 5a = -5a

Solving for variable 'a'.

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

Add '5a' to each side of the equation.
30 + 5a + 5a = -5a + 5a

Combine like terms: 5a + 5a = 10a
30 + 10a = -5a + 5a

Combine like terms: -5a + 5a = 0
30 + 10a = 0

Add '-30' to each side of the equation.
30 + -30 + 10a = 0 + -30

Combine like terms: 30 + -30 = 0
0 + 10a = 0 + -30
10a = 0 + -30

Combine like terms: 0 + -30 = -30
10a = -30

Divide each side by '10'.
a = -3

Simplifying
a = -3

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