0.7x+0.3(20)=0.5(x+40)

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Solution for 0.7x+0.3(20)=0.5(x+40) equation:


Simplifying
0.7x + 0.3(20) = 0.5(x + 40)

Multiply 0.3 * 20
0.7x + 6 = 0.5(x + 40)

Reorder the terms:
6 + 0.7x = 0.5(x + 40)

Reorder the terms:
6 + 0.7x = 0.5(40 + x)
6 + 0.7x = (40 * 0.5 + x * 0.5)
6 + 0.7x = (20 + 0.5x)

Solving
6 + 0.7x = 20 + 0.5x

Solving for variable 'x'.

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

Add '-0.5x' to each side of the equation.
6 + 0.7x + -0.5x = 20 + 0.5x + -0.5x

Combine like terms: 0.7x + -0.5x = 0.2x
6 + 0.2x = 20 + 0.5x + -0.5x

Combine like terms: 0.5x + -0.5x = 0.0
6 + 0.2x = 20 + 0.0
6 + 0.2x = 20

Add '-6' to each side of the equation.
6 + -6 + 0.2x = 20 + -6

Combine like terms: 6 + -6 = 0
0 + 0.2x = 20 + -6
0.2x = 20 + -6

Combine like terms: 20 + -6 = 14
0.2x = 14

Divide each side by '0.2'.
x = 70

Simplifying
x = 70

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