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(30-x)/5+4=8
We move all terms to the left:
(30-x)/5+4-(8)=0
We add all the numbers together, and all the variables
(-1x+30)/5+4-8=0
We add all the numbers together, and all the variables
(-1x+30)/5-4=0
We multiply all the terms by the denominator
(-1x+30)-4*5=0
We add all the numbers together, and all the variables
(-1x+30)-20=0
We get rid of parentheses
-1x+30-20=0
We add all the numbers together, and all the variables
-1x+10=0
We move all terms containing x to the left, all other terms to the right
-x=-10
x=-10/-1
x=+10
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