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21/5v-3/5v=-1+8/5v
We move all terms to the left:
21/5v-3/5v-(-1+8/5v)=0
Domain of the equation: 5v!=0
v!=0/5
v!=0
v∈R
Domain of the equation: 5v)!=0We add all the numbers together, and all the variables
v!=0/1
v!=0
v∈R
21/5v-3/5v-(8/5v-1)=0
We get rid of parentheses
21/5v-3/5v-8/5v+1=0
We multiply all the terms by the denominator
1*5v+21-3-8=0
We add all the numbers together, and all the variables
1*5v+10=0
Wy multiply elements
5v+10=0
We move all terms containing v to the left, all other terms to the right
5v=-10
v=-10/5
v=-2
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