2007-03-08 06:52:25 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
5y-8 = 3y+5
add 8 to both sides
5y = 3y+13
take 3y from both sides
2y = 13
divide by 2
y = 13/2
so the answer is y=13/2 or y = 6.5 if you want the answer given in decimal
note that whatever you do to one side of the equation you must also do to the other side, you can do these things as much as you want to attempt to get the one side equal to just y
2007-03-08 07:09:04 · answer #1 · answered by MARTIN B 4 · 0⤊ 0⤋
5y - 8 = 3y + 5
> 5y - 3y = 5 + 8
> 2y = 13
> y = 13/2
2007-03-08 15:00:54 · answer #2 · answered by ganesan 2 · 1⤊ 0⤋
5y-8+8=3y+5+8
5y=3y+13
5y-3y=13+3y-3y
2y=13
y=13/2=6 1/2
2007-03-08 16:52:42 · answer #3 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
5y - 8 = 3y + 5
5y - 8 - 3y = 3y + 5 - 3y
2y - 8 = 5
2y - 8 + 8 = 5 + 8
2y = 13
2y / 2 = 13 / 2
y = 6 1/2
y = 6.5
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2007-03-08 16:09:02 · answer #4 · answered by SAMUEL D 7 · 0⤊ 0⤋
5y-3y=5+8
2y=13
y=13/2
y = 61/2
2007-03-08 15:05:33 · answer #5 · answered by gorph001 1 · 0⤊ 0⤋
Subtract 3y from both sides:
2y-8=5
Add 8 from both sides:
2y=13
Divide 2 from both sides:
y=13/2
Check:
5(13/2)-8=3(13/2)+5
65/2-16/2=39/2+10/2
49/2=49/2
I hope this helps!
2007-03-08 15:02:43 · answer #6 · answered by Anonymous · 0⤊ 0⤋
you need to put the y's on one side and the constants on the other side in order to solve for y
so 5y -3y - 8 = 5
so 2y-8=5
2y = 5 +8
2y=13
y = 13/5
2007-03-08 14:59:18 · answer #7 · answered by Melinda W. 2 · 1⤊ 0⤋
5y-8 = 3y=5
5y-3y = 5+8
2y = 13
y = 6.5
2007-03-08 15:22:39 · answer #8 · answered by star 2 · 0⤊ 0⤋
y = 13/2 or 6.5
2007-03-08 14:59:08 · answer #9 · answered by Newbody 4 · 1⤊ 0⤋
y = 6.5
2007-03-08 16:12:24 · answer #10 · answered by PH 2 · 0⤊ 0⤋