Răspuns :
a-b=105
a/3=4b/5
5a=12b
b=5a/12
a-5a/12=105
12a-5a=1260
7a=1260
a=180
b=180-105=75
a/3=4b/5
5a=12b
b=5a/12
a-5a/12=105
12a-5a=1260
7a=1260
a=180
b=180-105=75
x-y=105
x/3=4y×1/5
x/3=4y/5
x/3=4y/5
produsul mezilor cu produsul extremilor:
12y=5x
5x=12y
x=12y/5
x-y=105
12y/5-y=105
aducem la același numitor, numitorul comun fiind 5:
12y-5y=105×5
7y=525
y=525/7
y=75.
x-y=105
x-75=105
x=105+75
x=180.
Sper ca te-am ajutat :)
x/3=4y×1/5
x/3=4y/5
x/3=4y/5
produsul mezilor cu produsul extremilor:
12y=5x
5x=12y
x=12y/5
x-y=105
12y/5-y=105
aducem la același numitor, numitorul comun fiind 5:
12y-5y=105×5
7y=525
y=525/7
y=75.
x-y=105
x-75=105
x=105+75
x=180.
Sper ca te-am ajutat :)