.40x+.15(140-x)=.25(140)

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Solution for .40x+.15(140-x)=.25(140) equation:


Simplifying
0.40x + 0.15(140 + -1x) = 0.25(140)
0.40x + (140 * 0.15 + -1x * 0.15) = 0.25(140)
0.40x + (21 + -0.15x) = 0.25(140)

Reorder the terms:
21 + 0.40x + -0.15x = 0.25(140)

Combine like terms: 0.40x + -0.15x = 0.25x
21 + 0.25x = 0.25(140)

Multiply 0.25 * 140
21 + 0.25x = 35

Solving
21 + 0.25x = 35

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 + 0.25x = 35 + -21

Combine like terms: 21 + -21 = 0
0 + 0.25x = 35 + -21
0.25x = 35 + -21

Combine like terms: 35 + -21 = 14
0.25x = 14

Divide each side by '0.25'.
x = 56

Simplifying
x = 56

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