Question

exercițiul 23 va rog toate punctele (de la a pana la h)

Answer 1

a. 3x-3y=3y
3x=6y
x/y=6/3

b. 15 (2x+y)=73y
30x+15y=73y
30x=58y
x/y=58/30

c. 4 (3x-y)=9*2y
12x-4y=18y
12x=22y
x/y=22/12
d. 3(x+y)=7 (x-y)
3x+3y=7x-7y
-4x=-10y
x/y=-10/-4

e. 17x=5x+10y
12x=10y
x/y=10/12

f. 17 (2x+y)=13 (x+2y)
34x+17y=13x+26y
21x=9y
x/y=9/21

g. 16 (2x-y)=11 (x+y)
32x-16y=11x+11y
21x=27y
x/y=27/21

h. 9x=3x+8y
6x=8y
x/y=8/6