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x+(x*0.2)=278.35
We move all terms to the left:
x+(x*0.2)-(278.35)=0
We add all the numbers together, and all the variables
x+(+x*0.2)-(278.35)=0
We add all the numbers together, and all the variables
x+(+x*0.2)-278.35=0
We get rid of parentheses
x+x*0.2-278.35=0
Wy multiply elements
x+0.2x-278.35=0
We add all the numbers together, and all the variables
1.2x-278.35=0
We move all terms containing x to the left, all other terms to the right
1.2x=278.35
x=278.35/1.2
x=231+1/1.0434782608695
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