-3(7+2x)=9

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Solution for -3(7+2x)=9 equation: 


Simplifying
-3(7 + 2x) = 9
(7 * -3 + 2x * -3) = 9
(-21 + -6x) = 9

Solving
-21 + -6x = 9

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + -6x = 9 + 21

Combine like terms: -21 + 21 = 0
0 + -6x = 9 + 21
-6x = 9 + 21

Combine like terms: 9 + 21 = 30
-6x = 30

Divide each side by '-6'.
x = -5

Simplifying
x = -5

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