-7(9-2x)=-21

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Solution for -7(9-2x)=-21 equation: 


Simplifying
-7(9 + -2x) = -21
(9 * -7 + -2x * -7) = -21
(-63 + 14x) = -21

Solving
-63 + 14x = -21

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 + 14x = -21 + 63

Combine like terms: -63 + 63 = 0
0 + 14x = -21 + 63
14x = -21 + 63

Combine like terms: -21 + 63 = 42
14x = 42

Divide each side by '14'.
x = 3

Simplifying
x = 3

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