👤
Elenafratila
a fost răspuns

4.Rezolvati ecuația următoare unde x€Q
a)4/3x=5/9
b)5/2x=3/8
c)6/7x=8/5
b)8/27x=-4/15
e)15/4=-25/8x
f)-4/3x=-2/9​

Răspuns :

a) 3x*5=4*9
15x=36
x=36/15
x=13/5
b) 5*8=2x*3
40=6x
x=40/6
x=20/3
c) 6*5=8*7x
30=56x
15=28x
x=15/28
d) 8*15=-4*27x
2*5=-9x
10=-9x
x=10/9
e) 15*8x=4*(-25)
3*2x=-5
6x=-5
x=-5/6
f) -4*9=-2*3x
-2*3=-x
-6=-x
x=6

Alte intrebari