7x-18x=-21-12

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Solution for 7x-18x=-21-12 equation: 


Simplifying
7x + -18x = -21 + -12

Combine like terms: 7x + -18x = -11x
-11x = -21 + -12

Combine like terms: -21 + -12 = -33
-11x = -33

Solving
-11x = -33

Solving for variable 'x'.

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

Divide each side by '-11'.
x = 3

Simplifying
x = 3

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