.25x+7.5(10-x)=3

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Solution for .25x+7.5(10-x)=3 equation:


Simplifying
0.25x + 7.5(10 + -1x) = 3
0.25x + (10 * 7.5 + -1x * 7.5) = 3
0.25x + (75 + -7.5x) = 3

Reorder the terms:
75 + 0.25x + -7.5x = 3

Combine like terms: 0.25x + -7.5x = -7.25x
75 + -7.25x = 3

Solving
75 + -7.25x = 3

Solving for variable 'x'.

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

Add '-75' to each side of the equation.
75 + -75 + -7.25x = 3 + -75

Combine like terms: 75 + -75 = 0
0 + -7.25x = 3 + -75
-7.25x = 3 + -75

Combine like terms: 3 + -75 = -72
-7.25x = -72

Divide each side by '-7.25'.
x = 9.931034483

Simplifying
x = 9.931034483

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