.40x+.07(14000-x)=420

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Solution for .40x+.07(14000-x)=420 equation:


Simplifying
0.40x + 0.07(14000 + -1x) = 420
0.40x + (14000 * 0.07 + -1x * 0.07) = 420
0.40x + (980 + -0.07x) = 420

Reorder the terms:
980 + 0.40x + -0.07x = 420

Combine like terms: 0.40x + -0.07x = 0.33x
980 + 0.33x = 420

Solving
980 + 0.33x = 420

Solving for variable 'x'.

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

Add '-980' to each side of the equation.
980 + -980 + 0.33x = 420 + -980

Combine like terms: 980 + -980 = 0
0 + 0.33x = 420 + -980
0.33x = 420 + -980

Combine like terms: 420 + -980 = -560
0.33x = -560

Divide each side by '0.33'.
x = -1696.969697

Simplifying
x = -1696.969697

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