0.2(x+20)-0.08(x-40)=3.6

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Solution for 0.2(x+20)-0.08(x-40)=3.6 equation:


Simplifying
0.2(x + 20) + -0.08(x + -40) = 3.6

Reorder the terms:
0.2(20 + x) + -0.08(x + -40) = 3.6
(20 * 0.2 + x * 0.2) + -0.08(x + -40) = 3.6
(4 + 0.2x) + -0.08(x + -40) = 3.6

Reorder the terms:
4 + 0.2x + -0.08(-40 + x) = 3.6
4 + 0.2x + (-40 * -0.08 + x * -0.08) = 3.6
4 + 0.2x + (3.2 + -0.08x) = 3.6

Reorder the terms:
4 + 3.2 + 0.2x + -0.08x = 3.6

Combine like terms: 4 + 3.2 = 7.2
7.2 + 0.2x + -0.08x = 3.6

Combine like terms: 0.2x + -0.08x = 0.12x
7.2 + 0.12x = 3.6

Solving
7.2 + 0.12x = 3.6

Solving for variable 'x'.

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

Add '-7.2' to each side of the equation.
7.2 + -7.2 + 0.12x = 3.6 + -7.2

Combine like terms: 7.2 + -7.2 = 0.0
0.0 + 0.12x = 3.6 + -7.2
0.12x = 3.6 + -7.2

Combine like terms: 3.6 + -7.2 = -3.6
0.12x = -3.6

Divide each side by '0.12'.
x = -30

Simplifying
x = -30

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