30=40-1.25x

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Solution for 30=40-1.25x equation:


Simplifying
30 = 40 + -1.25x

Solving
30 = 40 + -1.25x

Solving for variable 'x'.

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

Add '1.25x' to each side of the equation.
30 + 1.25x = 40 + -1.25x + 1.25x

Combine like terms: -1.25x + 1.25x = 0.00
30 + 1.25x = 40 + 0.00
30 + 1.25x = 40

Add '-30' to each side of the equation.
30 + -30 + 1.25x = 40 + -30

Combine like terms: 30 + -30 = 0
0 + 1.25x = 40 + -30
1.25x = 40 + -30

Combine like terms: 40 + -30 = 10
1.25x = 10

Divide each side by '1.25'.
x = 8

Simplifying
x = 8

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