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dedylja [7]
3 years ago
14

X+y=1 x+3y=9 Solve (First answer gets brainliest)

Mathematics
2 answers:
Firdavs [7]3 years ago
8 0
X + y = 1
x + 3y = 9

Subtract the second equation from the first.
-2y = -8
divide both sides by -2
y = 4

Plug 4 back into either equation and solve for x.
x + y = 1
x + 4 = 1
subtract 4 from each side
x = -3
(-3, 4)
skad [1K]3 years ago
5 0
X+3Y=9

-X+Y=1
2Y=8

Y=4

X+4=1

X=-3
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