-0.07x+0.03(x+4000)=320

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Solution for -0.07x+0.03(x+4000)=320 equation:


Simplifying
-0.07x + 0.03(x + 4000) = 320

Reorder the terms:
-0.07x + 0.03(4000 + x) = 320
-0.07x + (4000 * 0.03 + x * 0.03) = 320
-0.07x + (120 + 0.03x) = 320

Reorder the terms:
120 + -0.07x + 0.03x = 320

Combine like terms: -0.07x + 0.03x = -0.04x
120 + -0.04x = 320

Solving
120 + -0.04x = 320

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 + -0.04x = 320 + -120

Combine like terms: 120 + -120 = 0
0 + -0.04x = 320 + -120
-0.04x = 320 + -120

Combine like terms: 320 + -120 = 200
-0.04x = 200

Divide each side by '-0.04'.
x = -5000

Simplifying
x = -5000

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