80=200-40x

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Solution for 80=200-40x equation:


Simplifying
80 = 200 + -40x

Solving
80 = 200 + -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.
80 + 40x = 200 + -40x + 40x

Combine like terms: -40x + 40x = 0
80 + 40x = 200 + 0
80 + 40x = 200

Add '-80' to each side of the equation.
80 + -80 + 40x = 200 + -80

Combine like terms: 80 + -80 = 0
0 + 40x = 200 + -80
40x = 200 + -80

Combine like terms: 200 + -80 = 120
40x = 120

Divide each side by '40'.
x = 3

Simplifying
x = 3

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