5x-2x-21=1-7x

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Solution for 5x-2x-21=1-7x equation:


Simplifying
5x + -2x + -21 = 1 + -7x

Reorder the terms:
-21 + 5x + -2x = 1 + -7x

Combine like terms: 5x + -2x = 3x
-21 + 3x = 1 + -7x

Solving
-21 + 3x = 1 + -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.
-21 + 3x + 7x = 1 + -7x + 7x

Combine like terms: 3x + 7x = 10x
-21 + 10x = 1 + -7x + 7x

Combine like terms: -7x + 7x = 0
-21 + 10x = 1 + 0
-21 + 10x = 1

Add '21' to each side of the equation.
-21 + 21 + 10x = 1 + 21

Combine like terms: -21 + 21 = 0
0 + 10x = 1 + 21
10x = 1 + 21

Combine like terms: 1 + 21 = 22
10x = 22

Divide each side by '10'.
x = 2.2

Simplifying
x = 2.2

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