0.12x+0.04(3000-x)=280

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Solution for 0.12x+0.04(3000-x)=280 equation:


Simplifying
0.12x + 0.04(3000 + -1x) = 280
0.12x + (3000 * 0.04 + -1x * 0.04) = 280
0.12x + (120 + -0.04x) = 280

Reorder the terms:
120 + 0.12x + -0.04x = 280

Combine like terms: 0.12x + -0.04x = 0.08x
120 + 0.08x = 280

Solving
120 + 0.08x = 280

Solving for variable 'x'.

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

Add '-120' to each side of the equation.
120 + -120 + 0.08x = 280 + -120

Combine like terms: 120 + -120 = 0
0 + 0.08x = 280 + -120
0.08x = 280 + -120

Combine like terms: 280 + -120 = 160
0.08x = 160

Divide each side by '0.08'.
x = 2000

Simplifying
x = 2000

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