3(-1x+3)=15

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Solution for 3(-1x+3)=15 equation: 


Simplifying
3(-1x + 3) = 15

Reorder the terms:
3(3 + -1x) = 15
(3 * 3 + -1x * 3) = 15
(9 + -3x) = 15

Solving
9 + -3x = 15

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + -3x = 15 + -9

Combine like terms: 9 + -9 = 0
0 + -3x = 15 + -9
-3x = 15 + -9

Combine like terms: 15 + -9 = 6
-3x = 6

Divide each side by '-3'.
x = -2

Simplifying
x = -2

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