7(2x-2)=21

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


Simplifying
7(2x + -2) = 21

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

Solving
-14 + 14x = 21

Solving for variable 'x'.

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

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

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

Combine like terms: 21 + 14 = 35
14x = 35

Divide each side by '14'.
x = 2.5

Simplifying
x = 2.5

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