Im not really good at seventh grade math i need some

Answers:

1/2a= 8

Multiply by 2/1 on both sides

1/2(2/1)a= 8(2/1)

Cross out 1/2 and 2/1 equals to a

a= 16

4n= 32

Divide by 4 for both sides

4n/4= 32/4

n= 8

3x= 36

Divide by 3 for both sides

3x/3= 36/3

x= 12

m/3= 2

Multiply by 3/1 for both sides

3/1*m/3= 2(3/1)

Cross out 3/1 and 3 becomes m

m= 6

x-8= 12

Move -8 to the other side. Sign changes from -8 to +8

x-8+8= 12+8

x= 20

48= 3k

Divide by 3 for both sides

48/3= 3k/3

k= 16

13/b= 0

Multiply by 1/13 for both sides.

13/b( 1/13)= 0(1/13)

b= 0

39= 13y

divide by 13 for both sides

39/13= 13y/13

y= 3

bn,mn,n.vn.

step-by-step explanation: