0.15x+0.10(280-x)=30.75

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Solution for 0.15x+0.10(280-x)=30.75 equation:


0.15x + 0.10(280-x)=30.75

We simplify the equation to the form, which is simple to understand 
0.15x + 0.10(280-x)=30.75

Reorder the terms in parentheses
0.15x+(+28-0.1x)=30.75

Remove unnecessary parentheses
 + 0.15x+28-0.1x=+30.75

We move all terms containing x to the left and all other terms to the right. 
 + 0.15x-0.1x=+30.75-28

We simplify left and right side of the equation. 
 + 0.05x=+2.75

We divide both sides of the equation by 0.05 to get x. 
x=55

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