5-3x=-40

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Solution for 5-3x=-40 equation: 


Simplifying
5 + -3x = -40

Solving
5 + -3x = -40

Solving for variable 'x'.

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

Add '-5' to each side of the equation.
5 + -5 + -3x = -40 + -5

Combine like terms: 5 + -5 = 0
0 + -3x = -40 + -5
-3x = -40 + -5

Combine like terms: -40 + -5 = -45
-3x = -45

Divide each side by '-3'.
x = 15

Simplifying
x = 15

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