0.43x+0.71(140-x)=0.65(140)

Solution for 0.43x+0.71(140-x)=0.65(140) equation:

Simplifying
0.43x + 0.71(140 + -1x) = 0.65(140)
0.43x + (140 * 0.71 + -1x * 0.71) = 0.65(140)
0.43x + (99.4 + -0.71x) = 0.65(140)

Reorder the terms:
99.4 + 0.43x + -0.71x = 0.65(140)

Combine like terms: 0.43x + -0.71x = -0.28x
99.4 + -0.28x = 0.65(140)

Multiply 0.65 * 140
99.4 + -0.28x = 91

Solving
99.4 + -0.28x = 91

Solving for variable 'x'.

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

Add '-99.4' to each side of the equation.
99.4 + -99.4 + -0.28x = 91 + -99.4

Combine like terms: 99.4 + -99.4 = 0.0
0.0 + -0.28x = 91 + -99.4
-0.28x = 91 + -99.4

Combine like terms: 91 + -99.4 = -8.4
-0.28x = -8.4

Divide each side by '-0.28'.
x = 30

Simplifying
x = 30