-x+ 4y>-8, x+y≤3
y≤3-x
-x+4(3-x)>-8
-x+12-4x>-8
12-5x>-8
-5x>-20
x>4
y≤3-(4)
y≤-1
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If you mean: x+y = 8 and -x+2y = 7 then they are simultaneous equations whose solutions are x = 3 and y = 5
If you mean: x+y = 8 and -x+2y = 7, then they are simultaneous equations whose solutions are x = 3 and y = 5.
x + y = 4 or y = -x + 4 To get X-intercept, make y = 0, then 0 = -x + 4, or x = 4To get Y-intercept, make x = 0, then y = -0 + 4, or y = 4
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