-3(3x+7)=3x

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Solution for -3(3x+7)=3x equation:


Simplifying
-3(3x + 7) = 3x

Reorder the terms:
-3(7 + 3x) = 3x
(7 * -3 + 3x * -3) = 3x
(-21 + -9x) = 3x

Solving
-21 + -9x = 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.
-21 + -9x + -3x = 3x + -3x

Combine like terms: -9x + -3x = -12x
-21 + -12x = 3x + -3x

Combine like terms: 3x + -3x = 0
-21 + -12x = 0

Add '21' to each side of the equation.
-21 + 21 + -12x = 0 + 21

Combine like terms: -21 + 21 = 0
0 + -12x = 0 + 21
-12x = 0 + 21

Combine like terms: 0 + 21 = 21
-12x = 21

Divide each side by '-12'.
x = -1.75

Simplifying
x = -1.75

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