Question

Find the solutions of y= x+2 y=4-x

Answer 1

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

Answer 2

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