4y+2divided by 6=21 solve for y
2006-11-02 00:11:41 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
4y+2/6=21
4y + 1/3 = 21
All times 3
12y + 1 = 63
12y = 62
y = 62 / 12 = 5 1/6
Th
2006-11-02 00:53:18 · answer #1 · answered by Thermo 6 · 0⤊ 0⤋
Y=31
2006-11-02 08:14:57 · answer #2 · answered by Stephanie 2 · 0⤊ 0⤋
(4y + 2)/6 = 21
4y + 2 = 21*6
4y + 2 = 126
4y = 126 - 2
4y = 124
y = 124/4
y = 31
2006-11-02 21:16:33 · answer #3 · answered by Akilesh - Internet Undertaker 7 · 0⤊ 0⤋
(4y +2)/6 = 21
we can't work with y yet as it is in the brackets.
so lets multiply both sides by 6
this gives -
(4y + 2) = 21 x 6
4y + 2 = 126
to get y subject of the formula first we have to subtract 2 on both sides
4y = 126 - 2
4y = 124
all that remains is to divide both sides by 4 - to get y subject of the formula
y = 124/4
y =31.
Hope it was helpful
2006-11-02 08:24:18 · answer #4 · answered by Maria F 1 · 0⤊ 0⤋
(4y+2)/6=21
multiply by 6
4y+2=21*6=126
subtract 2
4y=126-2=124
divide by 4
y=124/4=31
2006-11-02 08:21:40 · answer #5 · answered by raj 7 · 0⤊ 0⤋
you have probably problems understanding how to solve equations in general, therefore I have made the solution as little course in how to solve linear equations.
your equation :(4y+2)/6=21
Remember you can add and subtract and multiply with any number, as long as you do it on both side of the equation. You can also divide with anything except 0, because division by 0 is not defined.
We want to isolate y on the one side of the equation sign, and we first multiply with 6 on both side of the equation, in order to get rid of the fraction:
6*(4y+2)/6=6*21<=>
4y+2=126
now we subtract 2 on both side, in order to get the terms with y standing alone.
4y+2-2=126-2<=>
4y=124
we can now divide with 4 on both side of the equation and we get:
4y/4=124/4<=>
y=124/4=31
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2006-11-02 08:38:14 · answer #6 · answered by Broden 4 · 0⤊ 0⤋
(4y+2)/6 = 21
4y+2=126
4y=124
y=31
2006-11-02 08:20:19 · answer #7 · answered by . 3 · 0⤊ 0⤋