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Question
If x+3=12 and 2/3x-y=5, what is the value of x?
If you are talking about
x + 3 = 12
(2/3)x - y = 5
x + 3 = 12
x = 9
(2/3)x - y = 5
(2/3)(9) - y = 5
(18/3) - y = 5
6 - y = 5
-y = -1
y = 1
x = 9
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However, if by this you meant
x + 3y = 12
(2/3)x - y = 5
Multiply bottom by 3
x + 3y = 12
2x - 3y = 15
3x = 27
x = 9
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Sherman D.
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