40(.9-.8)=5x

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Solution for 40(.9-.8)=5x equation:


Simplifying
40(0.9 + -0.8) = 5x

Combine like terms: 0.9 + -0.8 = 0.1
40(0.1) = 5x

Multiply 40 * 0.1
4 = 5x

Solving
4 = 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
4 + -5x = 5x + -5x

Combine like terms: 5x + -5x = 0
4 + -5x = 0

Add '-4' to each side of the equation.
4 + -4 + -5x = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -5x = 0 + -4
-5x = 0 + -4

Combine like terms: 0 + -4 = -4
-5x = -4

Divide each side by '-5'.
x = 0.8

Simplifying
x = 0.8

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