-40x-90=-210

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Solution for -40x-90=-210 equation: 


Simplifying
-40x + -90 = -210

Reorder the terms:
-90 + -40x = -210

Solving
-90 + -40x = -210

Solving for variable 'x'.

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

Add '90' to each side of the equation.
-90 + 90 + -40x = -210 + 90

Combine like terms: -90 + 90 = 0
0 + -40x = -210 + 90
-40x = -210 + 90

Combine like terms: -210 + 90 = -120
-40x = -120

Divide each side by '-40'.
x = 3

Simplifying
x = 3

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