-7x-9=40

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Solution for -7x-9=40 equation: 


Simplifying
-7x + -9 = 40

Reorder the terms:
-9 + -7x = 40

Solving
-9 + -7x = 40

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + -7x = 40 + 9

Combine like terms: -9 + 9 = 0
0 + -7x = 40 + 9
-7x = 40 + 9

Combine like terms: 40 + 9 = 49
-7x = 49

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

Simplifying
x = -7

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