Question

Suppose y= 2x + 10
Find y if x= -2

Answer 1

y =6 substitute the value 

Answer 2

So we are given the equation
y = 2x + 10
Find y if x = -2
plug in the given information
y = 2 (-2) + 10
y = -4 + 10
y = 6

Hope this helps :)