7(9-3x)=-189

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Solution for 7(9-3x)=-189 equation: 


Simplifying
7(9 + -3x) = -189
(9 * 7 + -3x * 7) = -189
(63 + -21x) = -189

Solving
63 + -21x = -189

Solving for variable 'x'.

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

Add '-63' to each side of the equation.
63 + -63 + -21x = -189 + -63

Combine like terms: 63 + -63 = 0
0 + -21x = -189 + -63
-21x = -189 + -63

Combine like terms: -189 + -63 = -252
-21x = -252

Divide each side by '-21'.
x = 12

Simplifying
x = 12

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