a.
23+x=52
x=52-23
x=29
b.
3*n=51
n=51/3
n=17
c.
8+y-12=1
y-4=1
y=1+4
y=5
d.
5*p=30
p=30/5
p=6
e.
50=t-1
50+1=t
51=t
f.
64÷8+u=30
8+u=30
u=30-8
u=22
g.
r=24-12÷4
r=24-3
r=21
h.
56÷8-7=j
7-7=j
0=j
i.
543+762+h=2653
1035+h=2653
h=2653-1035
h=1348
j.
144÷s=12
144=12*s
144/12=s
12=s
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x=52-23
x=29
así? o nel
a.
23+x=52
x=52-23
x=29
b.
3*n=51
n=51/3
n=17
c.
8+y-12=1
y-4=1
y=1+4
y=5
d.
5*p=30
p=30/5
p=6
e.
50=t-1
50+1=t
51=t
f.
64÷8+u=30
8+u=30
u=30-8
u=22
g.
r=24-12÷4
r=24-3
r=21
h.
56÷8-7=j
7-7=j
0=j
i.
543+762+h=2653
1035+h=2653
h=2653-1035
h=1348
j.
144÷s=12
144=12*s
144/12=s
12=s