Question

find the substitution method 5x+4/y=9 , 7x-2/y=5​

Answer 1

Answer:

x=y=1

Step-by-step explanation:

5x + 4 / y = 9

solve for X, x = 9y - 4/5 * y

put this x value in 7x - 2 / y = 5

we get => 7(9y-4)/5y - 2/y =5

=> y=1

then put this y value in 5x + 4 / y = 9 ,

we get x = 1