Find the solutions of y = x+2

y=4-x

y = x+2

y=4-x

so

x + 2 = 4 - x

2x = 2

x = 1

y = 1 + 2

y = 3

Answer

x = 1, y = 3

y = x + 2

y = 4 - x

Let (y = x+2) be y

x+2 = 4 - x

x + x = 4 - 2

2x = 2

Therefore x = 1

Lets now find y;

y = x+2

lets replace x with 1 (x=1)

y = 1+2

y = 3

The answer therefore is y=3 and x = 1