240=80-40x

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Solution for 240=80-40x equation:


Simplifying
240 = 80 + -40x

Solving
240 = 80 + -40x

Solving for variable 'x'.

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

Add '40x' to each side of the equation.
240 + 40x = 80 + -40x + 40x

Combine like terms: -40x + 40x = 0
240 + 40x = 80 + 0
240 + 40x = 80

Add '-240' to each side of the equation.
240 + -240 + 40x = 80 + -240

Combine like terms: 240 + -240 = 0
0 + 40x = 80 + -240
40x = 80 + -240

Combine like terms: 80 + -240 = -160
40x = -160

Divide each side by '40'.
x = -4

Simplifying
x = -4

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