Question

F = 5x - 2y x = 3 and y = −2 Find the value of f

Answer 1

you just replace the letters so its going to be

f=5x- 2y with x=3 , y= -2

f=5·3 -2 (-2)

f=15+4=19

Answer 2

f=19

Explanation:

f=5x-2y

when X=3 & y= -2

or, f=5×3 - 2×(-2)

or,f=19