6-21=3x-4-2x

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Solution for 6-21=3x-4-2x equation:


Simplifying
6 + -21 = 3x + -4 + -2x

Combine like terms: 6 + -21 = -15
-15 = 3x + -4 + -2x

Reorder the terms:
-15 = -4 + 3x + -2x

Combine like terms: 3x + -2x = 1x
-15 = -4 + 1x

Solving
-15 = -4 + 1x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-15 + -1x = -4 + 1x + -1x

Combine like terms: 1x + -1x = 0
-15 + -1x = -4 + 0
-15 + -1x = -4

Add '15' to each side of the equation.
-15 + 15 + -1x = -4 + 15

Combine like terms: -15 + 15 = 0
0 + -1x = -4 + 15
-1x = -4 + 15

Combine like terms: -4 + 15 = 11
-1x = 11

Divide each side by '-1'.
x = -11

Simplifying
x = -11

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