3 years ago

X+3y=10X-5y=-2X=? Y=?

Mathematics

2 answers:

DerKrebs [107]3 years ago

6 0

I think X is:3 and y is:4

Inessa [10]3 years ago

4 0

X+3y=10
X-5y=-2
--------------subtract
8y = 12
y = 12/8 = 3/2 = 1.5

X+3y=10
x = 10 - 3y
x = 10 - 3(1.5)
x = 10 - 4.5
x = 5.5

answer
x = 5.5 and y = 1.5

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