3(5-x)=3x-9

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Solution for 3(5-x)=3x-9 equation:


Simplifying
3(5 + -1x) = 3x + -9
(5 * 3 + -1x * 3) = 3x + -9
(15 + -3x) = 3x + -9

Reorder the terms:
15 + -3x = -9 + 3x

Solving
15 + -3x = -9 + 3x

Solving for variable 'x'.

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

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

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

Combine like terms: 3x + -3x = 0
15 + -6x = -9 + 0
15 + -6x = -9

Add '-15' to each side of the equation.
15 + -15 + -6x = -9 + -15

Combine like terms: 15 + -15 = 0
0 + -6x = -9 + -15
-6x = -9 + -15

Combine like terms: -9 + -15 = -24
-6x = -24

Divide each side by '-6'.
x = 4

Simplifying
x = 4

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