Answer:
Explanation:
given:
x=3 and y=-4
to find:
4x-y
substitute the value of x and y
=4*3-(-4)
=12+4
=16
-x+y
substitute the vaue of x and y
=-3+(-4)
=-3-4
=-7
7-y-x
=7-(-4)-3
=7+4-3
=11-3
=8
Hope this helps u !!
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