Question 801408
y=2x+2 in substation form 
                             6x+y=4 

6x+y=4

substitute y

6x+2x+2= 4

8x+2=4

8x=2
x=2/8
x=1/4

plug x to get value of y

6*1/4 +y =4

y=4-3/2

y=5/2