-5x-(6-4x)=21

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Solution for -5x-(6-4x)=21 equation:


Simplifying
-5x + -1(6 + -4x) = 21
-5x + (6 * -1 + -4x * -1) = 21
-5x + (-6 + 4x) = 21

Reorder the terms:
-6 + -5x + 4x = 21

Combine like terms: -5x + 4x = -1x
-6 + -1x = 21

Solving
-6 + -1x = 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 + -1x = 21 + 6

Combine like terms: -6 + 6 = 0
0 + -1x = 21 + 6
-1x = 21 + 6

Combine like terms: 21 + 6 = 27
-1x = 27

Divide each side by '-1'.
x = -27

Simplifying
x = -27

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