12
x
−
8
y
=
24
6
x
−
y
=
21
1 answer:
Answer: x=4
y=3
Step-by-step explanation:
12x-8y=24
6x-y=21
---------------------
y=6x-21
12x-8(6x-21)=24
12x-48x+168=24
-36x=-144
x=144/36
x=4
y=24-21
y=3
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