-4a+18+9a=3a-7a

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Solution for -4a+18+9a=3a-7a equation:


Simplifying
-4a + 18 + 9a = 3a + -7a

Reorder the terms:
18 + -4a + 9a = 3a + -7a

Combine like terms: -4a + 9a = 5a
18 + 5a = 3a + -7a

Combine like terms: 3a + -7a = -4a
18 + 5a = -4a

Solving
18 + 5a = -4a

Solving for variable 'a'.

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

Add '4a' to each side of the equation.
18 + 5a + 4a = -4a + 4a

Combine like terms: 5a + 4a = 9a
18 + 9a = -4a + 4a

Combine like terms: -4a + 4a = 0
18 + 9a = 0

Add '-18' to each side of the equation.
18 + -18 + 9a = 0 + -18

Combine like terms: 18 + -18 = 0
0 + 9a = 0 + -18
9a = 0 + -18

Combine like terms: 0 + -18 = -18
9a = -18

Divide each side by '9'.
a = -2

Simplifying
a = -2

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