-x-2(-20)=15

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Solution for -x-2(-20)=15 equation: 


Simplifying
-1x + -2(-20) = 15

Multiply -2 * -20
-1x + 40 = 15

Reorder the terms:
40 + -1x = 15

Solving
40 + -1x = 15

Solving for variable 'x'.

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

Add '-40' to each side of the equation.
40 + -40 + -1x = 15 + -40

Combine like terms: 40 + -40 = 0
0 + -1x = 15 + -40
-1x = 15 + -40

Combine like terms: 15 + -40 = -25
-1x = -25

Divide each side by '-1'.
x = 25

Simplifying
x = 25

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