WILL GIVE BRAINLIESTTT!!!!!!!!!
2 answers:
Answer:
x-y=12 or x=12+y??????
Step-by-step explanation:
6x+y=30
-2x-5y=18
Add the equations up: 4x-4y=48
Divide by 4
x-4y=12
Divide by 4 again
x-y=12
+y on both sides
x=12+y
(I might be wrong)
Answer:

Step-by-step explanation:
Unless you're required to use any particular method, let's add the first to twice the second to eliminate x:

At this point let's plug this value of y in the first equation and find x:

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Step-by-step explanation: