-3a+5=-13

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Solution for -3a+5=-13 equation: 


Simplifying
-3a + 5 = -13

Reorder the terms:
5 + -3a = -13

Solving
5 + -3a = -13

Solving for variable 'a'.

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

Add '-5' to each side of the equation.
5 + -5 + -3a = -13 + -5

Combine like terms: 5 + -5 = 0
0 + -3a = -13 + -5
-3a = -13 + -5

Combine like terms: -13 + -5 = -18
-3a = -18

Divide each side by '-3'.
a = 6

Simplifying
a = 6

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