Question

Tolong bantu jawab, besok d kumpul​

Answer 1

Jawaban:

1. (x-1)=4

x = 5

(x-1)=-4

x=-3

2. I2x-1l = 5

maka

(2x-1)=5

2x=6

x=3

(2x-1)=-5

2x=-4

x=-2

3. -5 lx-7l+2=-13

-5lx-7l=-15

maka

-5(x-7)=-15

x-7=3

x=10

-5(x-7)=15

x-7=-3

x=4