Solve for u. 2u + 1 = 5u + 19?
回答 (8)
2009-11-08 5:36 pm
✔ 最佳答案
2u-5u=19-1-3u=18
u=-6
2009-11-08 5:42 pm
2u+1=5u+19
-19 (From both sides)
2u-18=5u
-2u (From both sides)
3u= -18
/3 (From both sides)
u=-6
-19 (From both sides)
2u-18=5u
-2u (From both sides)
3u= -18
/3 (From both sides)
u=-6
2009-11-08 5:37 pm
2u+1=5u+19
-2u -2u
1=3u+19
-19 -19
-18=3u
-6=u
U=-6
-2u -2u
1=3u+19
-19 -19
-18=3u
-6=u
U=-6
2009-11-08 7:13 pm
2u + 1 = 5u + 19
=> move all elements that have u in them on one side and all the ones that don't (numbers) on the other one.
2u - 5u = 19 - 1 (when you change the side,you also change the sign)
-3u=18 (divide both sides by - 3 because you want to get rid of the number in front of u and have it by itself)
u = - 6
Good luck!
=> move all elements that have u in them on one side and all the ones that don't (numbers) on the other one.
2u - 5u = 19 - 1 (when you change the side,you also change the sign)
-3u=18 (divide both sides by - 3 because you want to get rid of the number in front of u and have it by itself)
u = - 6
Good luck!
2009-11-08 5:41 pm
2u + 1 = 5u + 19
- 3u = 18
u = - 6.
- 3u = 18
u = - 6.
2009-11-08 5:35 pm
2u + 1 = 5u + 19
=> 2u - 5u = 19 - 1
=> -3u = 18
=> u = 18/(-3)
=> u = -6
=> 2u - 5u = 19 - 1
=> -3u = 18
=> u = 18/(-3)
=> u = -6
2009-11-08 5:34 pm
Subtract 2U and subtract 1 you get
0=3u+18
Subtract 18 and Divide by 3
-18=3u, then u=-6
0=3u+18
Subtract 18 and Divide by 3
-18=3u, then u=-6
2009-11-08 5:38 pm
2u+1=5u+19
-1 -1
2u=5u+18
+5u+5u
7u=18
divide 7 from both sides
7/18=0.3673
rounded to 0.4
u=0.4 (or 0.3673)
-1 -1
2u=5u+18
+5u+5u
7u=18
divide 7 from both sides
7/18=0.3673
rounded to 0.4
u=0.4 (or 0.3673)
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