40=15-9x-2

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Solution for 40=15-9x-2 equation:


Simplifying
40 = 15 + -9x + -2

Reorder the terms:
40 = 15 + -2 + -9x

Combine like terms: 15 + -2 = 13
40 = 13 + -9x

Solving
40 = 13 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
40 + 9x = 13 + -9x + 9x

Combine like terms: -9x + 9x = 0
40 + 9x = 13 + 0
40 + 9x = 13

Add '-40' to each side of the equation.
40 + -40 + 9x = 13 + -40

Combine like terms: 40 + -40 = 0
0 + 9x = 13 + -40
9x = 13 + -40

Combine like terms: 13 + -40 = -27
9x = -27

Divide each side by '9'.
x = -3

Simplifying
x = -3

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