All you hav to do it plug in what you know
y=20 and x=8
20=8k
divide both sides by 8
20/8=8k/8
and you get 5/2
20/8=5/2
so your answer is 5/2
{ y ≥ 2x + 1; y > -2x - 3 } Unbound
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Answer:
x = 8 - y
Step by step explaination:
==>x + y = 8
==> x = 8 - y
==> substract the value
==> Done
Its 20 the sides are equal