Question 409559
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Hi
solving "Linear system using substitution"
4x-y=17  OR y = 4x-17 |Need to solve for one variable in either equation 
-9x+8y=2              |subsituting for y
 -9x + 8(4x-17) = 2
 -9x + 32x - 136 = 2
        23x = 138
          x = 6  and y = 7  (4*6 -17) Ordered pair Pt(6,7) is the solution
CHECKING our Answer***
 -9x + 8y =2
 -54 + 56 = 2