2x+15=21-4x

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Solution for 2x+15=21-4x equation:


Simplifying
2x + 15 = 21 + -4x

Reorder the terms:
15 + 2x = 21 + -4x

Solving
15 + 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.
15 + 2x + 4x = 21 + -4x + 4x

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

Combine like terms: -4x + 4x = 0
15 + 6x = 21 + 0
15 + 6x = 21

Add '-15' to each side of the equation.
15 + -15 + 6x = 21 + -15

Combine like terms: 15 + -15 = 0
0 + 6x = 21 + -15
6x = 21 + -15

Combine like terms: 21 + -15 = 6
6x = 6

Divide each side by '6'.
x = 1

Simplifying
x = 1

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