Solve for y. Show ALL work:
12y + 4 = 8y - 12
2006-10-26 04:33:00 · 14 answers · asked by cak 1 in Science & Mathematics ➔ Mathematics
Now this one
■ 12y + 4 = 8y - 12
■ 12 y - 8y = -12 - 4
■ y ( 12 - 8 ) = - 16
■ 4y = -16
■ y = -16 / 4
■ y = - 4
Good Luck Dear ♣
2006-10-26 08:59:11 · answer #1 · answered by sweetie 5 · 6⤊ 0⤋
12y + 4 = 8y - 12
12y + 4 - 8y = 8y - 12 - 8y
4y + 4 = - 10
4y + 4 - 4 = - 12 - 4
4y = - 16
4y/4 = - 16/4
y = - 4
The answer is y = - 4
Insert the y value into the equation
- - - - - - - - - - - - - - - - - - - - - - - -
Check
12y + 4 = 8y - 12
12( - 4) + 4 = 8(- 4) - 12
- 48 + 4 = - 32 - 12
- 44 = - 44
- - - - - - - -s-
2006-10-26 12:01:36 · answer #2 · answered by SAMUEL D 7 · 0⤊ 0⤋
12y + 4 = 8y - 12
12y - 8y = -12 -4
4 y = -16
y = -4
2006-10-26 11:35:27 · answer #3 · answered by yanesh_r 1 · 1⤊ 0⤋
12y+4=8y-12 (subtract both sides by 8y)
12y+4-8y=8y-12-8y
4y+4=-12 (subtract both sides by 4)
4y+4-4=-12-4
4y=-16 (divide both sides by 4 to isolate y)
4y/4=-16/4
y=-4
2006-10-26 11:49:10 · answer #4 · answered by chokala 1 · 0⤊ 0⤋
12y + 4= 8y - 12
12y - 8y = -4 - 12
4y = -16
y= -4
2006-10-26 11:36:43 · answer #5 · answered by southernparadise27 2 · 0⤊ 0⤋
12y + 4 = 8y - 12
12y-8y=-12-4
y(12-8)=-16
y*4=-16
y=-16/4
y=-4
2006-10-26 11:38:45 · answer #6 · answered by Anonymous · 0⤊ 0⤋
12y+4=8y-12
4y=-16
y=-4
2006-10-26 11:34:36 · answer #7 · answered by Anonymous · 0⤊ 0⤋
12y +4=8y-12
12+4=8y-12y
16=-4y
y=-16/4
y=-4 ans.
2006-10-26 11:43:18 · answer #8 · answered by PRIYA D 1 · 0⤊ 0⤋
y=-4
Here's how: subtract 8y from both sides to get 4y on the left; subtract 4 from both sides to get -16 on the right, then divide both sides by 4 to get y=-4.
2006-10-26 11:40:59 · answer #9 · answered by devin_mcabee 1 · 0⤊ 0⤋
real easy
first, notice all numbers are divisible by 4, so divide by 4 everywhere, you get:
3y + 1 = 2y - 3
now eliminate the y's from one side, say by subracting 2y from both sides, you get:
y + 1 = -3
subtract 1 on both sides you get
y = -4
and it does work:
12*(-4) +4 = 8*(-4) -12
-44 = -44
2006-10-26 11:36:49 · answer #10 · answered by AntoineBachmann 5 · 0⤊ 0⤋