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

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


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

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

Combine like terms: 4 + -3 = 1
1 + 2x + -3x + x + 2x = 21

Combine like terms: 2x + -3x = -1x
1 + -1x + x + 2x = 21

Combine like terms: -1x + x = 0
1 + 0 + 2x = 21
1 + 2x = 21

Solving
1 + 2x = 21

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + 2x = 21 + -1

Combine like terms: 1 + -1 = 0
0 + 2x = 21 + -1
2x = 21 + -1

Combine like terms: 21 + -1 = 20
2x = 20

Divide each side by '2'.
x = 10

Simplifying
x = 10

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