7x-8x-9=76-40

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Solution for 7x-8x-9=76-40 equation:


Simplifying
7x + -8x + -9 = 76 + -40

Reorder the terms:
-9 + 7x + -8x = 76 + -40

Combine like terms: 7x + -8x = -1x
-9 + -1x = 76 + -40

Combine like terms: 76 + -40 = 36
-9 + -1x = 36

Solving
-9 + -1x = 36

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 + -1x = 36 + 9

Combine like terms: -9 + 9 = 0
0 + -1x = 36 + 9
-1x = 36 + 9

Combine like terms: 36 + 9 = 45
-1x = 45

Divide each side by '-1'.
x = -45

Simplifying
x = -45

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