7x-21-6=18x-21-1x

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Solution for 7x-21-6=18x-21-1x equation:


Simplifying
7x + -21 + -6 = 18x + -21 + -1x

Reorder the terms:
-21 + -6 + 7x = 18x + -21 + -1x

Combine like terms: -21 + -6 = -27
-27 + 7x = 18x + -21 + -1x

Reorder the terms:
-27 + 7x = -21 + 18x + -1x

Combine like terms: 18x + -1x = 17x
-27 + 7x = -21 + 17x

Solving
-27 + 7x = -21 + 17x

Solving for variable 'x'.

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

Add '-17x' to each side of the equation.
-27 + 7x + -17x = -21 + 17x + -17x

Combine like terms: 7x + -17x = -10x
-27 + -10x = -21 + 17x + -17x

Combine like terms: 17x + -17x = 0
-27 + -10x = -21 + 0
-27 + -10x = -21

Add '27' to each side of the equation.
-27 + 27 + -10x = -21 + 27

Combine like terms: -27 + 27 = 0
0 + -10x = -21 + 27
-10x = -21 + 27

Combine like terms: -21 + 27 = 6
-10x = 6

Divide each side by '-10'.
x = -0.6

Simplifying
x = -0.6

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