2x+3=21+4x

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Solution for 2x+3=21+4x equation:


Simplifying
2x + 3 = 21 + 4x

Reorder the terms:
3 + 2x = 21 + 4x

Solving
3 + 2x = 21 + 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.
3 + 2x + -4x = 21 + 4x + -4x

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

Combine like terms: 4x + -4x = 0
3 + -2x = 21 + 0
3 + -2x = 21

Add '-3' to each side of the equation.
3 + -3 + -2x = 21 + -3

Combine like terms: 3 + -3 = 0
0 + -2x = 21 + -3
-2x = 21 + -3

Combine like terms: 21 + -3 = 18
-2x = 18

Divide each side by '-2'.
x = -9

Simplifying
x = -9

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