Question

Jwb dong yg bisa please

Answer 1

2. x-13=7
x=7+13
=20 d
 3. 18-y=-5
-y=-5-18
-y=-23
y=23 a

5. 2/5y+1/4y=2
8/20y+5/20y=2
13/20y=2
y=2x20/13
=40/13
=3 1/3 c

6. 1/p=2/5+1/2
1/p=4/10+5/10
1/p=9/10
p=9/10 a

7. 6x-3-12x-8=30-12x
-6x-11=30-12x
6x=41
x=41/6
x=6 5/6 d