Question

a)-5/2y=1/4
c)1,4z=-7/2​

Answer 1

Răspuns:

Explicație pas cu pas:

a)y=-1/4×2/5=-1/10

c) z=-7/2×10/14=-5/2

Answer 2

-5/2y=1/4

2y= 1/4 × (-5)

2y= -5/4

y= -5/4:2

y= -5/4 × 1/2

y= -5/8

1,4z=-7/2

z= -7/2 : 1,4

z= -7/2 : 14/10

z= -7/2 × 10/14

z= -70/28 = -10/4 = -5/2

Succes