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-4y -6y = -25 + 15
-10y = -10
y = -10/-10
y = 1
2m-5m-5≥-17
-3m≥-17+5
-3m≥-12
m≥-12/-3
m≥4
*nb= maap kalo salah '-'
2.a. 24m=12
m=12/24
=1/2
b. 3z+11=-28
3z=-28-11
3z=-39
z=-39/3
=-13
c. 25-4y=6y+15
-4y-6y=15-25
-10y=-10
y=1
d. -4x-15=1-8x
-4x+8x=1+15
4x=16
x=4
e. 6/a+2=4
6/a=4-2
6/a=2
6=2a
3=a
jadiin yang terbaik ya ini banyak loh '-'