Question

Astea 2ex plus cum ai facut

Answer 1

Răspuns:

h) X = 22

i) X = 10

Explicație pas cu pas:

h) (2X +25) / 24 = (X + 1) / 8

Inmultesti in cruce

16X + 200 = 24X + 24

16X + 176 = 24X

8X = 176

X = 22

i) (1,1X - 4) / x + 4 = 1,5 / 3

Inmultesti in cruce

3,3X - 12 = 1,5X + 6

3,3X = 1,5X + 18

1,8X = 18

X = 10