Răspunsuri

2014-03-22T14:04:38+02:00
A) x:5=420-305
x:5=115
x=775
b) (156:3-164:4)+x=33
(52-41)+x=33
11+x=33
x=22
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2014-03-22T14:05:49+02:00
A) x:5=420-305
x:5=115
x=115*5
x=775

b) (52-41)+x=33
11+x=33
x=22