Mathematics
10 Online
OpenStudy (anonymous):
Solve for x: 7 over 8 minus 1 over x equals 3 over 4.
x = 1
x = 2
x = 4
x = 8
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
\[\frac{ 7 }{ 8 } - \frac{ 1 }{ x } = \frac{ 3 }{ 4 }\]
OpenStudy (anonymous):
Do the follow
7/8-3/4=1/x
7-6/8=1/x
1/8=1/x
Now you can try to finish;)
OpenStudy (anonymous):
so we have \[\frac{ 1 }{ 8 } = \frac{ 1 }{ x }\] just to make sure
OpenStudy (anonymous):
x = 1?
OpenStudy (anonymous):
i mean 8
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
Sure
OpenStudy (anonymous):
thnx i have 2 more can you help with?
OpenStudy (anonymous):
Sure
OpenStudy (anonymous):
post it here or in a new one?
OpenStudy (anonymous):
Here
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
Solve for x: 2 over quantity x plus 2 plus 1 over 5 equals 6 over quantity x plus 5.
x = 0
x = –13
x = 13
x = 0 and x = 13
OpenStudy (anonymous):
\[\frac{ 2 }{ x + 2 } + \frac{ 1 }{ 5 } = \frac{ 6 }{ x + 5 }\]
OpenStudy (anonymous):
Use minimum multiple common
(5.2)+(x+2)/5x+10= 6/x+5
10+x+2/5x+10=6/x+5
12+x/5x+10=6/x+5
(12+x).(x+5)=6.(5x+10)
Now you can try to solve the rest
OpenStudy (anonymous):
im stuck at 62 + x^2 = 25x
OpenStudy (anonymous):
should i subtract x^2 from both sides
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
No, now you have to use baskara
OpenStudy (anonymous):
idk how to do that
OpenStudy (anonymous):
Look you made a mistake somewhere
12x+60+x^2+5x=30x+60
17x+60+x^2=30x+60
X^2+17x=30x
X^2-13x=0
So
X(x-13)=0
X=0
Or
X=13
OpenStudy (anonymous):
D is right
OpenStudy (anonymous):
ohh okay i see
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
can you help me with 1 more>?
OpenStudy (anonymous):
Sure :)
OpenStudy (anonymous):
Solve for x: 3 over 3 x plus 1 over quantity x plus 4 equals 10 over 7x .
x = –3
x = 3
x = –3 and x = 3
No Solution
OpenStudy (anonymous):
\[\frac{ 3 }{ 3x } + \frac{ 1 }{ x + 4 } = \frac{ 10 }{ 7x }\]
OpenStudy (anonymous):
1/x+4=10/7x-3/3x
1/x+4=10/7x-1/x
1/x+4=10-7/x
1/x+4=3x
Try to finish now
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
give me 1 sec plz
OpenStudy (anonymous):
1/x+4=3/x
Sorry I forgot the slash
OpenStudy (anonymous):
is it -3?
OpenStudy (anonymous):
oh ok let me try again
OpenStudy (anonymous):
idk what the answer is
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
X=3x+12
-2x=12
X=-6
OpenStudy (anonymous):
but that not one of my answer choices
OpenStudy (anonymous):
x = –3
x = 3
x = –3 and x = 3
No Solution
OpenStudy (anonymous):
My gosh I've made a mistake
1/x+4=3/7x
7x=3x+12
4x=12
X=3
Sorry about that
OpenStudy (anonymous):
np thnx