-7(2x-1)=21

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Solution for -7(2x-1)=21 equation:


Simplifying
-7(2x + -1) = 21

Reorder the terms:
-7(-1 + 2x) = 21
(-1 * -7 + 2x * -7) = 21
(7 + -14x) = 21

Solving
7 + -14x = 21

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + -14x = 21 + -7

Combine like terms: 7 + -7 = 0
0 + -14x = 21 + -7
-14x = 21 + -7

Combine like terms: 21 + -7 = 14
-14x = 14

Divide each side by '-14'.
x = -1

Simplifying
x = -1

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