100=40+0.20x

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Solution for 100=40+0.20x equation:


Simplifying
100 = 40 + 0.20x

Solving
100 = 40 + 0.20x

Solving for variable 'x'.

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

Add '-0.20x' to each side of the equation.
100 + -0.20x = 40 + 0.20x + -0.20x

Combine like terms: 0.20x + -0.20x = 0.00
100 + -0.20x = 40 + 0.00
100 + -0.20x = 40

Add '-100' to each side of the equation.
100 + -100 + -0.20x = 40 + -100

Combine like terms: 100 + -100 = 0
0 + -0.20x = 40 + -100
-0.20x = 40 + -100

Combine like terms: 40 + -100 = -60
-0.20x = -60

Divide each side by '-0.20'.
x = 300

Simplifying
x = 300

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