Numero 1
-18a=-72
4
-1+n=2
3
x-(-1.3)=-17.4
-18.7
x/3=10
30
-3(x+4)=-6
-2
3n=51
17
-3/4 = k/12
-9
2.6=n-10.5
13.1
50=-5b
-10
-5(x-8)=210
-34
-5=15-x
20
x/20 = -15
-300
-4=n/9
-36
180=-15v
-12
5+n/30 = 4
-30
v-5=-13
-8
p-(-1.6)=-13.61
-15.21
-306=-17r
18
-132=12a
-11
-15(m-16)=195
3
-3= p/9
-27
11.3=m+13.3
-2
20x=280
14
p/4 - 1 = -3
-8
17(r+12)=-374
-34