3x-30=-15

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Solution for 3x-30=-15 equation: 


Simplifying
3x + -30 = -15

Reorder the terms:
-30 + 3x = -15

Solving
-30 + 3x = -15

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + 3x = -15 + 30

Combine like terms: -30 + 30 = 0
0 + 3x = -15 + 30
3x = -15 + 30

Combine like terms: -15 + 30 = 15
3x = 15

Divide each side by '3'.
x = 5

Simplifying
x = 5

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