Question

Tentukan persamaan2 dibawah ini dengan mngalikan kpk penyebutnya!beserta jalnnya!!
1) 1/3x -5 = 10
2)3/4y-1/5y = 2
3)1/x - 1/2 =1/3
4)x/2 = x/7 - 10
5)6/y + 3/y =15/4
6)p/2 - p/3 = 1-p/6
7)6,2x - 7,1 = 5,3
8)1/2(4q-5) = q + 5 1/4(lima satuper empat)
9)3/4(n+4) - 2/3(3/4 - n) = 1/2
10)x+4per4 - 3x-9per7 = 1/2

Answer 1

1. 1/3x = 10+5
x= 15/3 = 5

2. 3/4y - 1/5y = 2
15-4/20=2 =16/20y = 2
y = 20/16.2 = 2,5

3)1/x - 1/2 =1/3
1/x = 1/3 + 1/2
1/x = 5/6
x = 1,2

4)x/2 = x/7 - 10

5)6/y + 3/y =15/4
9/y = 15/4
15y = 36
y = 36/15 = 2.4

6)p/2 - p/3 = 1-p/6


7)6,2x - 7,1 = 5,3

8)1/2(4q-5) = q + 5 1/4(lima satuper empat)

9)3/4(n+4) - 2/3(3/4 - n) = 1/2

10)x+4per4 - 3x-9per7 = 1/2