.2(x)+.8(100)=90

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Solution for .2(x)+.8(100)=90 equation:


.2(x)+.8(100)=90

We simplify the equation to the form, which is simple to understand 
.2(x)+.8(100)=90

Reorder the terms in parentheses
+( + 0.2x)+.8*(100)=90

Remove unnecessary parentheses
 + 0.2x+.8+*(+100+)=+90

Reorder the terms in parentheses
 + 0.2x+(+80)=90

Remove unnecessary parentheses
 + 0.2x+80=+90

We move all terms containing x to the left and all other terms to the right. 
 + 0.2x=+90-80

We simplify left and right side of the equation. 
 + 0.2x=+10

We divide both sides of the equation by 0.2 to get x. 
x=50

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