3x=8-(-13)

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Solution for 3x=8-(-13) equation: 


Simplifying
3x = 8 + -1(-13)

Multiply -1 * -13
3x = 8 + 13

Combine like terms: 8 + 13 = 21
3x = 21

Solving
3x = 21

Solving for variable 'x'.

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

Divide each side by '3'.
x = 7

Simplifying
x = 7

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