4x-8+15x=13-2x+21

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Solution for 4x-8+15x=13-2x+21 equation:


Simplifying
4x + -8 + 15x = 13 + -2x + 21

Reorder the terms:
-8 + 4x + 15x = 13 + -2x + 21

Combine like terms: 4x + 15x = 19x
-8 + 19x = 13 + -2x + 21

Reorder the terms:
-8 + 19x = 13 + 21 + -2x

Combine like terms: 13 + 21 = 34
-8 + 19x = 34 + -2x

Solving
-8 + 19x = 34 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
-8 + 19x + 2x = 34 + -2x + 2x

Combine like terms: 19x + 2x = 21x
-8 + 21x = 34 + -2x + 2x

Combine like terms: -2x + 2x = 0
-8 + 21x = 34 + 0
-8 + 21x = 34

Add '8' to each side of the equation.
-8 + 8 + 21x = 34 + 8

Combine like terms: -8 + 8 = 0
0 + 21x = 34 + 8
21x = 34 + 8

Combine like terms: 34 + 8 = 42
21x = 42

Divide each side by '21'.
x = 2

Simplifying
x = 2

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