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0.25+(x-5)/(15-5)*0.35=0.3
We move all terms to the left:
0.25+(x-5)/(15-5)*0.35-(0.3)=0
We add all the numbers together, and all the variables
(x-5)/10*0.35+0.25-(0.3)=0
We add all the numbers together, and all the variables
(x-5)/10*0.35-0.05=0
We multiply all the terms by the denominator
(x-5)-(0.05)*10*0.35=0
We add all the numbers together, and all the variables
(x-5)-0.175=0
We get rid of parentheses
x-5-0.175=0
We add all the numbers together, and all the variables
x-5.175=0
We move all terms containing x to the left, all other terms to the right
x=5.175
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