0.3x+0.4(20)=0.2(x+40)

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Solution for 0.3x+0.4(20)=0.2(x+40) equation: 


Simplifying
0.3x + 0.4(20) = 0.2(x + 40)

Multiply 0.4 * 20
0.3x + 8 = 0.2(x + 40)

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

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

Add '-8' to each side of the equation.
8 + -8 + 0.3x = 8 + -8 + 0.2x

Combine like terms: 8 + -8 = 0
0 + 0.3x = 8 + -8 + 0.2x
0.3x = 8 + -8 + 0.2x

Combine like terms: 8 + -8 = 0
0.3x = 0 + 0.2x
0.3x = 0.2x

Solving
0.3x = 0.2x

Solving for variable 'x'.

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

Add '-0.2x' to each side of the equation.
0.3x + -0.2x = 0.2x + -0.2x

Combine like terms: 0.3x + -0.2x = 0.1x
0.1x = 0.2x + -0.2x

Combine like terms: 0.2x + -0.2x = 0.0
0.1x = 0.0

Divide each side by '0.1'.
x = 0

Simplifying
x = 0

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