Question

afla valoarea lui a din egalitatea {5-2×[(6+a):3-2]}×7+3=24​

Answer 1

Răspuns:

2x[(6+a):3-2]}x7+3=24|-3

2x[(6+a):3-2]}x7=21| :7

2x[(6+a):3-2]}=3| :2

(6+a):3-2= 1.5 |+2

(6+a):3= 3.5| x3

6+a= 10.5 |-6

a= 4.5