0.06x+0.04(8000-x)=420

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Solution for 0.06x+0.04(8000-x)=420 equation:


Simplifying
0.06x + 0.04(8000 + -1x) = 420
0.06x + (8000 * 0.04 + -1x * 0.04) = 420
0.06x + (320 + -0.04x) = 420

Reorder the terms:
320 + 0.06x + -0.04x = 420

Combine like terms: 0.06x + -0.04x = 0.02x
320 + 0.02x = 420

Solving
320 + 0.02x = 420

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 + 0.02x = 420 + -320

Combine like terms: 320 + -320 = 0
0 + 0.02x = 420 + -320
0.02x = 420 + -320

Combine like terms: 420 + -320 = 100
0.02x = 100

Divide each side by '0.02'.
x = 5000

Simplifying
x = 5000

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