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AlexaTheFirst
a fost răspuns

afla numarul x
a) 214+x=5003
823-x=597
x-198=5718
b) xX5=85
x:8=165
90:x=9
c) 12:x=16:8
xX10=80:2
x+x=245+x

Răspuns :

EdyEdytzu
a) 214+x=5003
x=5003-214
x=4789

823-x=597
x=823-597
x=226

x-198=5718
x=5718+198
x=5916

b)x*5=85
x=85:5
x=17

x:8=165
x=165*8
x=1320

90:x=9
x=90:9
x=10

c) 12:x=16:8
12:x=2
x=12:2
x=6

x*10=80:2
x*10=40
x=40:10
x=4

x+x=245+x
2x=245+x
-x+2x=245
x=245

Sper că te-am ajutat!