13.50a+7.50(800-a)=7.680

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Solution for 13.50a+7.50(800-a)=7.680 equation: 



13.50a+7.50(800-a)=7.680

We move all terms to the left:

13.50a+7.50(800-a)-(7.680)=0

We add all the numbers together, and all the variables

13.50a+7.50(-1a+800)-(7.68)=0

We add all the numbers together, and all the variables

13.50a+7.50(-1a+800)-7.68=0

We multiply parentheses

13.50a-7.5a+6000-7.68=0

We add all the numbers together, and all the variables

6a+5992.32=0

We move all terms containing a to the left, all other terms to the right

6a=-5992.32

a=-5992.32/6

a=-998+1.8620689655173/2.586206896552

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