3 years ago

Encontar x y y de 3x + 2y =9 x + 3y=10

Mathematics

1 answer:

sladkih [1.3K]3 years ago

6 0

X=-3y+10
3(-3y+10)+2y=9
-9y+30+2y=9
-7y+30=9
-7y=-21
y=3
X=-3(3)+10
X=1

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