Answer:
4/5x(v-7)=2
multiply both sides by 5/4, the reciprocal of 4/5
v-7=2x(5/4)
Express 2x(5/4) as a single fraction
v-7=2x5
4
Multiply 2 and 5
v-7=10
4
Reduce the fraction 10/4 to the lowest by extracting and cancelling 2
v-7=5
2
Add 7 to both sides
v=5+7
2
Covert fraction to 14/2
v=5/2+14/2
Since 5/2 and 14/2 have the same denominator, add them by adding their numerators
v=5+14
2
Add 5 and 14 together
v=19
2
