0.3(x+50)+.5x=31

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Solution for 0.3(x+50)+.5x=31 equation: 


Simplifying
0.3(x + 50) + 0.5x = 31

Reorder the terms:
0.3(50 + x) + 0.5x = 31
(50 * 0.3 + x * 0.3) + 0.5x = 31
(15 + 0.3x) + 0.5x = 31

Combine like terms: 0.3x + 0.5x = 0.8x
15 + 0.8x = 31

Solving
15 + 0.8x = 31

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 0.8x = 31 + -15

Combine like terms: 15 + -15 = 0
0 + 0.8x = 31 + -15
0.8x = 31 + -15

Combine like terms: 31 + -15 = 16
0.8x = 16

Divide each side by '0.8'.
x = 20

Simplifying
x = 20

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