Question

Afla termenii necunoscuți:y-(78_64)=47;m+(43_27)=52;n-(56_25)=59;63_49+f=71;91_36_g=27;t-(28_9)=16

Answer 1

y-(78-64)=47,  m=47+(78-64),   y=61

m+(43-27)=52,  m=52-(43-27),  m=36

n-(56-25)=59,  n= 59+(56-25),   n=90

63-49+f=71,  f=71-63+49, f=57

91-36-g=27, g=91-27-36,  g=28

t-(28-9)=16, t=16+(28-9) , t=35