0.4x+0.25(51-x)=31

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Solution for 0.4x+0.25(51-x)=31 equation: 


Simplifying
0.4x + 0.25(51 + -1x) = 31
0.4x + (51 * 0.25 + -1x * 0.25) = 31
0.4x + (12.75 + -0.25x) = 31

Reorder the terms:
12.75 + 0.4x + -0.25x = 31

Combine like terms: 0.4x + -0.25x = 0.15x
12.75 + 0.15x = 31

Solving
12.75 + 0.15x = 31

Solving for variable 'x'.

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

Add '-12.75' to each side of the equation.
12.75 + -12.75 + 0.15x = 31 + -12.75

Combine like terms: 12.75 + -12.75 = 0.00
0.00 + 0.15x = 31 + -12.75
0.15x = 31 + -12.75

Combine like terms: 31 + -12.75 = 18.25
0.15x = 18.25

Divide each side by '0.15'.
x = 121.6666667

Simplifying
x = 121.6666667

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