x(0.07)+(8000-x)(0.04)=450

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Solution for x(0.07)+(8000-x)(0.04)=450 equation:


Simplifying
x(0.07) + (8000 + -1x)(0.04) = 450

Reorder the terms for easier multiplication:
0.07x + (8000 + -1x)(0.04) = 450

Reorder the terms for easier multiplication:
0.07x + 0.04(8000 + -1x) = 450
0.07x + (8000 * 0.04 + -1x * 0.04) = 450
0.07x + (320 + -0.04x) = 450

Reorder the terms:
320 + 0.07x + -0.04x = 450

Combine like terms: 0.07x + -0.04x = 0.03x
320 + 0.03x = 450

Solving
320 + 0.03x = 450

Solving for variable 'x'.

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

Add '-320' to each side of the equation.
320 + -320 + 0.03x = 450 + -320

Combine like terms: 320 + -320 = 0
0 + 0.03x = 450 + -320
0.03x = 450 + -320

Combine like terms: 450 + -320 = 130
0.03x = 130

Divide each side by '0.03'.
x = 4333.333333

Simplifying
x = 4333.333333

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