A.-7z = 3z - 30
b.4d + 6 =d
c.6m - 2 =2m - 8
d.3t + 6 =5t + 7
e.5p - 1 =4
please tolong jawab...sekalian caranya ya
b.4d + 6 =d
c.6m - 2 =2m - 8
d.3t + 6 =5t + 7
e.5p - 1 =4
please tolong jawab...sekalian caranya ya
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3z-30=-7z
3z+7z=30
10z=30
z=30/10
z=3
b) 4d+6=d
4d-d=-6
3d=-6
d=-6/3
d=-2
c) 6m-2=2m-8
6m-2m=-8+2
4m=-6
m=-6/4
m=-3/2
d) 3t+6=5t+7
3t-5t=7-6
-2t=1
t=1/-2
e) 5p-1=4
5p=4+1
5p=5
p=5/5
p=1