3x-30=y
7y-6=3x
using elimination
1 answer:
Answer:
x=12, y=6. (12, 6).
Step-by-step explanation:
3x-30=y
7y-6=3x
----------------
7y-6-30=y
7y-36=y
7y-y-36=0
6y-36=0
6y=0+36
6y=36
y=36/6
y=6
7(6)-6=3x
42-6=3x
36=3x
x=36/3
x=12
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