3-5a=18

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Solution for 3-5a=18 equation: 


Simplifying
3 + -5a = 18

Solving
3 + -5a = 18

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + -3 + -5a = 18 + -3

Combine like terms: 3 + -3 = 0
0 + -5a = 18 + -3
-5a = 18 + -3

Combine like terms: 18 + -3 = 15
-5a = 15

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

Simplifying
a = -3

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