Oblicz nieznaną liczbę :
a) x + 4,07 =15,305
b) 100 razy b = 15,1
c) z - 0,987 = 1,092
d) d : 10 = 32,05
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a) x + 4,07 =15,305 /-4,07
x=11,235
b) 100*b = 15,1 /:100
b=0,151
c) z - 0,987 = 1,092 /+0,987
z=2,079
d) d : 10 = 32,05 /*10
d=320,5
a)
x=15,305-4,07
x=11,235
b)
100b=15,1
b=0,151
c)
z-0,987=1,092
z=1,092+0,987
z=2,079
d)
d:10=32,05
0,1d=32,05
d=320,5