Question

If x equals 3, then find the matching value for y.
-7x-4y=-5

Answer 1

if x = 3
- 7x - 4y = -5 is the same as -7*3 - 4y = -5
hence -21 - 4y = -5
4y = -16
y = -4

Answer 2

-7(3)-4y=-5

-21-4y=-5

-4y = 16

y=-4