2x+21=4x-11

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Solution for 2x+21=4x-11 equation:


Simplifying
2x + 21 = 4x + -11

Reorder the terms:
21 + 2x = 4x + -11

Reorder the terms:
21 + 2x = -11 + 4x

Solving
21 + 2x = -11 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
21 + 2x + -4x = -11 + 4x + -4x

Combine like terms: 2x + -4x = -2x
21 + -2x = -11 + 4x + -4x

Combine like terms: 4x + -4x = 0
21 + -2x = -11 + 0
21 + -2x = -11

Add '-21' to each side of the equation.
21 + -21 + -2x = -11 + -21

Combine like terms: 21 + -21 = 0
0 + -2x = -11 + -21
-2x = -11 + -21

Combine like terms: -11 + -21 = -32
-2x = -32

Divide each side by '-2'.
x = 16

Simplifying
x = 16

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