18x-7=11x-21

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Solution for 18x-7=11x-21 equation:


Simplifying
18x + -7 = 11x + -21

Reorder the terms:
-7 + 18x = 11x + -21

Reorder the terms:
-7 + 18x = -21 + 11x

Solving
-7 + 18x = -21 + 11x

Solving for variable 'x'.

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

Add '-11x' to each side of the equation.
-7 + 18x + -11x = -21 + 11x + -11x

Combine like terms: 18x + -11x = 7x
-7 + 7x = -21 + 11x + -11x

Combine like terms: 11x + -11x = 0
-7 + 7x = -21 + 0
-7 + 7x = -21

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

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

Combine like terms: -21 + 7 = -14
7x = -14

Divide each side by '7'.
x = -2

Simplifying
x = -2

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