-21=-7x+2x+6

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Solution for -21=-7x+2x+6 equation:


Simplifying
-21 = -7x + 2x + 6

Reorder the terms:
-21 = 6 + -7x + 2x

Combine like terms: -7x + 2x = -5x
-21 = 6 + -5x

Solving
-21 = 6 + -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
-21 + 5x = 6 + -5x + 5x

Combine like terms: -5x + 5x = 0
-21 + 5x = 6 + 0
-21 + 5x = 6

Add '21' to each side of the equation.
-21 + 21 + 5x = 6 + 21

Combine like terms: -21 + 21 = 0
0 + 5x = 6 + 21
5x = 6 + 21

Combine like terms: 6 + 21 = 27
5x = 27

Divide each side by '5'.
x = 5.4

Simplifying
x = 5.4

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