Question

Given that r=7x+7y find x when y=2 and r=8

Answer 1

Answer:

x=6/7

Step-by-step explanation:

Given that

r=7x+7y----------------------------1

where; y=2,r=8

now; substitute the value in the eq 1

8=7x+7(2)

8=7x+14

7x=14-8

7x=6

x=6/7