4(x-2)=-9x-21

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Solution for 4(x-2)=-9x-21 equation:


Simplifying
4(x + -2) = -9x + -21

Reorder the terms:
4(-2 + x) = -9x + -21
(-2 * 4 + x * 4) = -9x + -21
(-8 + 4x) = -9x + -21

Reorder the terms:
-8 + 4x = -21 + -9x

Solving
-8 + 4x = -21 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
-8 + 4x + 9x = -21 + -9x + 9x

Combine like terms: 4x + 9x = 13x
-8 + 13x = -21 + -9x + 9x

Combine like terms: -9x + 9x = 0
-8 + 13x = -21 + 0
-8 + 13x = -21

Add '8' to each side of the equation.
-8 + 8 + 13x = -21 + 8

Combine like terms: -8 + 8 = 0
0 + 13x = -21 + 8
13x = -21 + 8

Combine like terms: -21 + 8 = -13
13x = -13

Divide each side by '13'.
x = -1

Simplifying
x = -1

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