-7(x-3)=21

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Solution for -7(x-3)=21 equation: 


Simplifying
-7(x + -3) = 21

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

Add '-21' to each side of the equation.
21 + -21 + -7x = 21 + -21

Combine like terms: 21 + -21 = 0
0 + -7x = 21 + -21
-7x = 21 + -21

Combine like terms: 21 + -21 = 0
-7x = 0

Solving
-7x = 0

Solving for variable 'x'.

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

Divide each side by '-7'.
x = 0

Simplifying
x = 0

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