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How to solve system graphically 4y = x + 8, x = 2/3y +2

Sagot :

4y = x + 8
x = 2/3y + 2
4y = x + 8
2/3y = x + 2
3 1/3y   8  
 3 1/3     3 1/3
        y = 2 2/5
4(2 2/5) = x + 8
   9 3/5 = x + 8
       -8        -8
   1 3/5 = x
     (x y) = (1 3/5, 3)