100+(0.8)x=40+(0.9)x

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Solution for 100+(0.8)x=40+(0.9)x equation:


Simplifying
100 + (0.8) * x = 40 + (0.9) * x

Solving
100 + 0.8x = 40 + 0.9x

Solving for variable 'x'.

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

Add '-0.9x' to each side of the equation.
100 + 0.8x + -0.9x = 40 + 0.9x + -0.9x

Combine like terms: 0.8x + -0.9x = -0.1x
100 + -0.1x = 40 + 0.9x + -0.9x

Combine like terms: 0.9x + -0.9x = 0.0
100 + -0.1x = 40 + 0.0
100 + -0.1x = 40

Add '-100' to each side of the equation.
100 + -100 + -0.1x = 40 + -100

Combine like terms: 100 + -100 = 0
0 + -0.1x = 40 + -100
-0.1x = 40 + -100

Combine like terms: 40 + -100 = -60
-0.1x = -60

Divide each side by '-0.1'.
x = 600

Simplifying
x = 600

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