Question

What must be the value of y if (4, y) lies on the line x + 3y = 13? ​

Answer 1

Step-by-step explanation:

x + 3y = 13

(4,y) = x coordinate, y coordinate

4 + 3y = 13

transposing 4 to RHS,

3y = 13-4

3y = 9

Y = 9÷3 = 3