bantu dong kak....udh nyoba tpi lupa caranya

1. a. x-2=10
x=10+2
x=12
b. 5y+7=19+4y
5y-4y=19-7
y=12
c. 24-3m=3m-6
-3m-3m=-6-24
-6m=-30
m=5
d. -3y+5+4y=-5
y=-5-5
y=-10
2. a. x+5=10
x+5-5=10-5
x=5
b. x-6=8
x-6+6=8+6
x=14
c. 2n=n-5
2n-n=n-n-5
n=-5
d. 5p=6+4p
5p-4p=6+4p-4p
p=6
3. a. 4a=16
4a/4=16/4
a=4
b. 2y-3=24
2y=24+3
2y=27
2y/2=27/2
y=27/2
c. 2n-5=9-5n
2n+5n=9+5
7n=14
7n/7=14/7
n=2
d. 2+3(p-1)=5(p-4)
2+3p-3=5p-20
3p-1=5p-20
3p-5p=-20+1
-2p=-19
p=19/2