Question

7) Rezolvati in Z ecuațiile:
a)8(x-3)= 24
b) 15-2x ) = 7

Vă rog e urgent ​

Answer 1

Răspuns:

Explicație pas cu pas:

8x-24=24

8x=24+24

8x=48

x=48:8

x=6

b) 2x=15-7

2x=8

x=4

Answer 2

a) 8(x-3) = 24 | :8

x-3 = 3

x = 3+3

x = 6

Verificare:

8(6-3) = 24

8*3 = 24

24 = 24 (A)

b) 15-2x = 7

-2x = 7-15

-2x = -8 | :(-2)

x = 4

Verificare:

15-2*4 = 7

15-8 = 7

7 = 7 (A)