What is - 5x+4y=3

x=2y-15

x=9

y=12

Step-by-step explanation:

you know what the value of x is in terms of the second equation

so put that value into the first equation

so

-5 (2y-15) + 4y = 3

-10y + 75 + 4y = 3

-6y + 75 = 3

-6y = - 72

y = 12 (now we have the actual value of y, just substitute this into any of the first two original functions)

x = 2 (12) - 15

x = 24 - 15

x = 9

x = 9

y = 12