0.7x+0.5*40=0.4(x+20)

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Solution for 0.7x+0.5*40=0.4(x+20) equation: 


Simplifying
0.7x + 0.5 * 40 = 0.4(x + 20)

Multiply 0.5 * 40
0.7x + 20 = 0.4(x + 20)

Reorder the terms:
20 + 0.7x = 0.4(x + 20)

Reorder the terms:
20 + 0.7x = 0.4(20 + x)
20 + 0.7x = (20 * 0.4 + x * 0.4)
20 + 0.7x = (8 + 0.4x)

Solving
20 + 0.7x = 8 + 0.4x

Solving for variable 'x'.

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

Add '-0.4x' to each side of the equation.
20 + 0.7x + -0.4x = 8 + 0.4x + -0.4x

Combine like terms: 0.7x + -0.4x = 0.3x
20 + 0.3x = 8 + 0.4x + -0.4x

Combine like terms: 0.4x + -0.4x = 0.0
20 + 0.3x = 8 + 0.0
20 + 0.3x = 8

Add '-20' to each side of the equation.
20 + -20 + 0.3x = 8 + -20

Combine like terms: 20 + -20 = 0
0 + 0.3x = 8 + -20
0.3x = 8 + -20

Combine like terms: 8 + -20 = -12
0.3x = -12

Divide each side by '0.3'.
x = -40

Simplifying
x = -40

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