.4x+.25(75-x)=30

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Solution for .4x+.25(75-x)=30 equation:


Simplifying
0.4x + 0.25(75 + -1x) = 30
0.4x + (75 * 0.25 + -1x * 0.25) = 30
0.4x + (18.75 + -0.25x) = 30

Reorder the terms:
18.75 + 0.4x + -0.25x = 30

Combine like terms: 0.4x + -0.25x = 0.15x
18.75 + 0.15x = 30

Solving
18.75 + 0.15x = 30

Solving for variable 'x'.

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

Add '-18.75' to each side of the equation.
18.75 + -18.75 + 0.15x = 30 + -18.75

Combine like terms: 18.75 + -18.75 = 0.00
0.00 + 0.15x = 30 + -18.75
0.15x = 30 + -18.75

Combine like terms: 30 + -18.75 = 11.25
0.15x = 11.25

Divide each side by '0.15'.
x = 75

Simplifying
x = 75

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