2007-01-22 14:16:51 · 5 answers · asked by lasfklaf; 1 in Science & Mathematics ➔ Mathematics
3/7y - 3 + 3 = 4 + 3 (add +3 to both sides)
3/7y = 7
(7/3) * 3/7 * y = (7/3) * 7 (multiply both sides by 7/3 to clear the y)
y = 49/3
Proof
3/7y - 3 = 4 (start with the original formula)
3/7 * (49/3) - 3 = 4 (substitute 49/3 for y)
7 - 3 = 4 (solve)
4 = 4 Proved
2007-01-22 14:25:18 · answer #1 · answered by The Answer Man 5 · 0⤊ 0⤋
y =3
2007-01-22 22:27:34 · answer #2 · answered by Deb 1 · 0⤊ 0⤋
For starters, I'm sure the community would appreciate if you put a bit more into your question, such as, "Could someone please help me solve this math problem for homework?" and then give it. Now, to the problem. You need to isolate Y by itself, so you add three to both sides so that you end up with...
3/7y=7
...then you multiply 3/7y by 7/3y so you get one y. (Remember, if you multiply by its reciprocal, the two cancel out as one) Then you multiply 7 by 7/3 also and you get y=49/3.
Hope I didn't make a mistake somewhere...but I don't see how I could have.
2007-01-22 22:26:10 · answer #3 · answered by fslcaptain737 4 · 0⤊ 0⤋
3/7y - 3 = 4
+3 = +3
-----------------
3/7y = 7
------ ---
3/7 3/7
----------------
y = ?
so divide 7 by 3/7
Good Luck!
I am not going to tell you the whole answer, but there is a start!
2007-01-22 22:28:47 · answer #4 · answered by O 3 · 0⤊ 0⤋
y = 49/3
(3/7y = 7)
(7x7/3=y)
(49/3=y)
2007-01-22 22:24:54 · answer #5 · answered by christie m. 2 · 0⤊ 0⤋