-3a=18+7a

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


Simplifying
-3a = 18 + 7a

Solving
-3a = 18 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
-3a + -7a = 18 + 7a + -7a

Combine like terms: -3a + -7a = -10a
-10a = 18 + 7a + -7a

Combine like terms: 7a + -7a = 0
-10a = 18 + 0
-10a = 18

Divide each side by '-10'.
a = -1.8

Simplifying
a = -1.8

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