.25x-.15(140-x)=.18(140)

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Solution for .25x-.15(140-x)=.18(140) equation:


Simplifying
0.25x + -0.15(140 + -1x) = 0.18(140)
0.25x + (140 * -0.15 + -1x * -0.15) = 0.18(140)
0.25x + (-21 + 0.15x) = 0.18(140)

Reorder the terms:
-21 + 0.25x + 0.15x = 0.18(140)

Combine like terms: 0.25x + 0.15x = 0.4x
-21 + 0.4x = 0.18(140)

Multiply 0.18 * 140
-21 + 0.4x = 25.2

Solving
-21 + 0.4x = 25.2

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 0.4x = 25.2 + 21

Combine like terms: -21 + 21 = 0
0 + 0.4x = 25.2 + 21
0.4x = 25.2 + 21

Combine like terms: 25.2 + 21 = 46.2
0.4x = 46.2

Divide each side by '0.4'.
x = 115.5

Simplifying
x = 115.5

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