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Anonymous
3x - y = 4
Get y by itself to see if it is the same as y = 3x - 4:
3x = 4 + y
3x - 4 = y
Therefore, 3x - y = 4 is the equivalent of y = 3x - 4.
Wiki User
Chat with our AI personalities
30x40=? Let's find out. What's 3x4? 12. Ok. So the 3 and 4 are out of the problem now. Look back at the problem. We see two zeros. We already took care of the 3 and 4. So what do we do with the zeros? You add them on to the number you already have. So 4x3=12. So it is 1,200. 30x40=1,200.