URGENTT ex 5⭐️⭐️⭐️⭐️⭐️
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Răspuns:
Explicație pas cu pas:
fie x ,y numerele
triplul lui x=3x
dublul lui y =2y
3x+2y=x+y+23;3x-x+2y-y=23;2x+y=23
x+y=12
2x+y=23
scad ec.1 din 2
x=23-12=11
y=12-11=1
Răspuns:
[tex]3a+2b=23+12= > 3a=35-2b\\ \\a+b=12/*3\\\\3a+3b=36\\\\35-2b+3b=36\\\\b=36-35= > b=1\\\\3a+2=35\\\\3a=35-3= > a=33:3= > a=11[/tex]