2007-12-11 17:04:46 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
3x + 27 = 60
3x = 33
x = 11
2007-12-12 09:54:26 · answer #1 · answered by Como 7 · 3⤊ 1⤋
x + 9 = 15 (4/3)
x + 9 = 60/3
x + 9 = 20
x = 11
2007-12-12 01:08:03 · answer #2 · answered by Zandia 3 · 0⤊ 0⤋
So multiply by 4 to get rid of the pesky fraction, so
3(x+9) = 4*15 = 60
Divide by 3
x+9 = 20
Subtract 9
x=11
.
2007-12-12 01:07:31 · answer #3 · answered by tsr21 6 · 0⤊ 0⤋
(3/4)*(x+9) = 15
(3/4)*x + (3/4)*9 = 15
3x / 4 + 27 / 4 = 15
(3x/4)*4 + (27/4)*4 = 15*4
3x + 27 = 60
3x +27 -27 = 60 - 27
3x = 33
3x / 3 = 33 / 3
x = 11
2007-12-12 01:19:44 · answer #4 · answered by Rayan Ghazi Ahmed 4 · 0⤊ 1⤋
3/4(x + 9) = 15
0.75x + 6.75 = 15
75x + 675 = 1,500
x + 9 = 20
x = 11
Answer: x = 11
Proof:
3/4(11 + 9) = 15
3/4 * 20 = 15
15 = 15
2007-12-12 01:18:59 · answer #5 · answered by Jun Agruda 7 · 3⤊ 1⤋
x=11
2007-12-12 01:18:45 · answer #6 · answered by Boknoy 3 · 0⤊ 1⤋
x=11
2007-12-12 01:07:49 · answer #7 · answered by drewsgatorgirl 2 · 0⤊ 1⤋
divide by 3/4
x + 9 = 20
x = 11
2007-12-12 01:07:46 · answer #8 · answered by Jay 4 · 0⤊ 0⤋
Correct!
= 3/4 (x+9) = 15
= 0.75 (5.25+9) = 15
= 0.75 + 14.25 = 15
3/4 ( x+9) = 15
x = 15 - 9 + 0.75
x = 15 - 9.75
x = 5.25
3 divided by 4 is 0.75
0.75
+ 5.25
---------
6.00 6+9 = 15
2007-12-12 01:16:15 · answer #9 · answered by Meadow2009 2 · 0⤊ 1⤋
3(x+9)=60
3x+27=60
3x=60-27
3x=43
x=43/3
2007-12-12 01:16:30 · answer #10 · answered by lemon d 2 · 0⤊ 1⤋