0.25x+0.75(10-x)=3

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Solution for 0.25x+0.75(10-x)=3 equation: 


Simplifying
0.25x + 0.75(10 + -1x) = 3
0.25x + (10 * 0.75 + -1x * 0.75) = 3
0.25x + (7.5 + -0.75x) = 3

Reorder the terms:
7.5 + 0.25x + -0.75x = 3

Combine like terms: 0.25x + -0.75x = -0.5x
7.5 + -0.5x = 3

Solving
7.5 + -0.5x = 3

Solving for variable 'x'.

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

Add '-7.5' to each side of the equation.
7.5 + -7.5 + -0.5x = 3 + -7.5

Combine like terms: 7.5 + -7.5 = 0.0
0.0 + -0.5x = 3 + -7.5
-0.5x = 3 + -7.5

Combine like terms: 3 + -7.5 = -4.5
-0.5x = -4.5

Divide each side by '-0.5'.
x = 9

Simplifying
x = 9

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