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vagabundo [1.1K]
4 years ago
5

Y= -x+2 x-3y =-18 How do i solve these so i can graph them

Mathematics
2 answers:
Vesnalui [34]4 years ago
6 0
X-3(-x+2)=-18
x+3x-6=-18
4x-6=-18
4x=-18+6
4x=-12
divided 4 both side
x=-3

y=3+2
y=5
(-3, 5) or x=-3 and y=5
balu736 [363]4 years ago
4 0

1. Substitute y=-x+2 into x-3y=-18:

x-3(-x+2)=-18,

x+3x-6=-18,

x+3x=-18+6,

4x=-12,

x=-3.

Then y=-(-3)+2=3+2=5.

2. The graphs of two equations you can see in attached diagram. Common point (the point of intersection) represents the solution of the system of two equations.

Answer: (-3,5) or x=-3, y=5.

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