-7(3-4x)=-5x-21

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Solution for -7(3-4x)=-5x-21 equation:


Simplifying
-7(3 + -4x) = -5x + -21
(3 * -7 + -4x * -7) = -5x + -21
(-21 + 28x) = -5x + -21

Reorder the terms:
-21 + 28x = -21 + -5x

Add '21' to each side of the equation.
-21 + 21 + 28x = -21 + 21 + -5x

Combine like terms: -21 + 21 = 0
0 + 28x = -21 + 21 + -5x
28x = -21 + 21 + -5x

Combine like terms: -21 + 21 = 0
28x = 0 + -5x
28x = -5x

Solving
28x = -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
28x + 5x = -5x + 5x

Combine like terms: 28x + 5x = 33x
33x = -5x + 5x

Combine like terms: -5x + 5x = 0
33x = 0

Divide each side by '33'.
x = 0

Simplifying
x = 0

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