-2x+1=21-7x

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Solution for -2x+1=21-7x equation:


Simplifying
-2x + 1 = 21 + -7x

Reorder the terms:
1 + -2x = 21 + -7x

Solving
1 + -2x = 21 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
1 + -2x + 7x = 21 + -7x + 7x

Combine like terms: -2x + 7x = 5x
1 + 5x = 21 + -7x + 7x

Combine like terms: -7x + 7x = 0
1 + 5x = 21 + 0
1 + 5x = 21

Add '-1' to each side of the equation.
1 + -1 + 5x = 21 + -1

Combine like terms: 1 + -1 = 0
0 + 5x = 21 + -1
5x = 21 + -1

Combine like terms: 21 + -1 = 20
5x = 20

Divide each side by '5'.
x = 4

Simplifying
x = 4

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