8+9u=-1+10u

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Solution for 8+9u=-1+10u equation:



8+9u=-1+10u
We move all terms to the left:
8+9u-(-1+10u)=0
We add all the numbers together, and all the variables
9u-(10u-1)+8=0
We get rid of parentheses
9u-10u+1+8=0
We add all the numbers together, and all the variables
-1u+9=0
We move all terms containing u to the left, all other terms to the right
-u=-9
u=-9/-1
u=+9

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