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(x*3)+5+x=143
We move all terms to the left:
(x*3)+5+x-(143)=0
We add all the numbers together, and all the variables
(+x*3)+x+5-143=0
We add all the numbers together, and all the variables
x+(+x*3)-138=0
We get rid of parentheses
x+x*3-138=0
Wy multiply elements
x+3x-138=0
We add all the numbers together, and all the variables
4x-138=0
We move all terms containing x to the left, all other terms to the right
4x=138
x=138/4
x=34+1/2
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