-2(2x-3)=-21

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Solution for -2(2x-3)=-21 equation:


Simplifying
-2(2x + -3) = -21

Reorder the terms:
-2(-3 + 2x) = -21
(-3 * -2 + 2x * -2) = -21
(6 + -4x) = -21

Solving
6 + -4x = -21

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + -4x = -21 + -6

Combine like terms: 6 + -6 = 0
0 + -4x = -21 + -6
-4x = -21 + -6

Combine like terms: -21 + -6 = -27
-4x = -27

Divide each side by '-4'.
x = 6.75

Simplifying
x = 6.75

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