0.4x-0.2(40+x)=0.3(40)

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Solution for 0.4x-0.2(40+x)=0.3(40) equation: 


Simplifying
0.4x + -0.2(40 + x) = 0.3(40)
0.4x + (40 * -0.2 + x * -0.2) = 0.3(40)
0.4x + (-8 + -0.2x) = 0.3(40)

Reorder the terms:
-8 + 0.4x + -0.2x = 0.3(40)

Combine like terms: 0.4x + -0.2x = 0.2x
-8 + 0.2x = 0.3(40)

Multiply 0.3 * 40
-8 + 0.2x = 12

Solving
-8 + 0.2x = 12

Solving for variable 'x'.

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

Add '8' to each side of the equation.
-8 + 8 + 0.2x = 12 + 8

Combine like terms: -8 + 8 = 0
0 + 0.2x = 12 + 8
0.2x = 12 + 8

Combine like terms: 12 + 8 = 20
0.2x = 20

Divide each side by '0.2'.
x = 100

Simplifying
x = 100

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