-6=y/5 +4
7/9=2n+1/9
-4/5t+2/5=2/3
-(x-10)=7
help on math problems??
2007-11-09 3:12 pm
回答 (4)
2007-11-09 3:27 pm
✔ 最佳答案
-6=y/5 +4 transfer 4 to the other side-6-4=y/5
-10=y/5 multiply both side by 5 to cancel the denominator
y=-50
7/9=2n+1/9
7/9-1/9=2n
6/9=2n
n=6/18
-4/5t+2/5=2/3
-4/5t=2/3-2/5
-4/5t=4/15
t=-3
-(x-10)=7
-x+10=7
-x=7-10
-x=-3
x=3
2007-11-09 11:29 pm
-6 =y/5 +4
(-6) - 4 = y/5
-10 = y / 5
(-10) / 5 = y
(-2)= (the answer)
7/9 = 2n + 1/9
7/9 - 1/9 = 2n
6/9 = 2n
2/3 = 2n
(2/3) / 2 = n
2/3 x 1/2 = n
1/3 = (the answer)
thats all i can help you. sorry.
(-6) - 4 = y/5
-10 = y / 5
(-10) / 5 = y
(-2)= (the answer)
7/9 = 2n + 1/9
7/9 - 1/9 = 2n
6/9 = 2n
2/3 = 2n
(2/3) / 2 = n
2/3 x 1/2 = n
1/3 = (the answer)
thats all i can help you. sorry.
2007-11-09 11:25 pm
-10=y/5
-50=y
6/9=2n 2/3=2n
n=1/3
-12/15t+6/15=10/15 -12t+6=10 -12t=4 t=-4/12
t=-1/3
10-x=7 -x=-3
x=3
-50=y
6/9=2n 2/3=2n
n=1/3
-12/15t+6/15=10/15 -12t+6=10 -12t=4 t=-4/12
t=-1/3
10-x=7 -x=-3
x=3
2007-11-09 11:24 pm
y = -50
n = 1/3
t = -3
x= 3
n = 1/3
t = -3
x= 3
收錄日期: 2021-05-03 13:55:41
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071109071248AAQnF4J