please help
2007-08-27 08:17:06 · 7 answers · asked by xlhollisterboi 1 in Science & Mathematics ➔ Mathematics
3x/2=x+15
3x=2x+30
x=30
2007-08-27 08:20:55 · answer #1 · answered by chasrmck 6 · 0⤊ 0⤋
3x = 2(x + 15)
3x = 2x + 30
x = 30
2007-08-27 10:49:59 · answer #2 · answered by Como 7 · 2⤊ 0⤋
3x / 2 = x + 15
3x = 2x + 30
x = 30
2007-08-27 08:25:02 · answer #3 · answered by Will 4 · 0⤊ 0⤋
3x/2=x+15
3x=2(x+15)
3x=2x+30
3x-2x=30
x=30
2007-08-27 08:23:27 · answer #4 · answered by cool j 2 · 0⤊ 0⤋
3x/2 = x + 15
First, cross multiply the 2:
3x = 2x + 30
Now, solve for x:
x = 30
You can check your answer by plugging that value back in to the equation:
3 * 30 / 2 = 30 + 15
90 / 2 = 45
45 = 45
So, it's correct.
2007-08-27 08:21:29 · answer #5 · answered by Jeremiah F 3 · 1⤊ 0⤋
3x/2=x+15
3x/2(2)=(2)x+30
3x=2x+30
x=30
plug in 30 as x.
3/2(30)=30+15
is..
45=45
correct.
2007-08-27 08:22:18 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Write this correctly.
3X / 2 = X +15
Multiply both side by 2, which will give you
3X = 2X + 30
subtract - 2X from both sides
X = 30
2007-08-27 08:27:41 · answer #7 · answered by thehazmater 2 · 0⤊ 1⤋