Find the value of x from the equation and
hence find three solutions of it -x+4y=-7
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let y=0. let y=1. let y=2
-x+4y=-7. -x+4y=-7. -x+4y=-7
-x+4.0=-7. -x+4.1=-7. -x+4.2=-7
-x=-7. -x=-7-4. -x=-7-8
x=7. -x=-11. -x=-15
x=11. x=15
therefore the three solution of -x+4y=-7 are 7,11 and 15
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