Question

3. If 3(x+y) = 81 and 81(x-v) = 3, find the values of x and y.​

Answer 1

Answer:

13.5

Step-by-step explanation:

x+y=27_______(1)

27x-27y=0_____(2)

BY ELIMINATION........

27x+27y=729

27x-27y=0

by subtracting

54y=729

y=13.5

put y=13.5 in 1

x=13.5