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7+u/8=u+12/4
We move all terms to the left:
7+u/8-(u+12/4)=0
We add all the numbers together, and all the variables
u/8-(u+3)+7=0
We get rid of parentheses
u/8-u-3+7=0
We multiply all the terms by the denominator
u-u*8-3*8+7*8=0
We add all the numbers together, and all the variables
u-u*8+32=0
Wy multiply elements
u-8u+32=0
We add all the numbers together, and all the variables
-7u+32=0
We move all terms containing u to the left, all other terms to the right
-7u=-32
u=-32/-7
u=4+4/7
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