Answer:
x =5
Step-by-step explanation:
hope this helps you
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Answer:15
Step-by-step explanation:6x +2y=30
2(3x+y) =30
3x+y=30÷2
3x+y=15
yes
y= -2
Please see attached picture for full solution.
(From the 4th to 5th line, I multiplied both sides by 8)