Question

1+{2x[3+(4+c) :5]-6} x7=15​

Answer 1

Răspuns:

Explicație pas cu pas:

1+{2x[3+(4+c) :5]-6} x7=15​

{2x[3+(4+c) :5]-6} x7 = 15 - 1 = 14

2x[3+(4+c) :5]-6 = 14 : 7 = 2

2x[3+(4+c) :5] = 2 + 6 = 8

3+(4+c) :5 = 8 : 2 = 4

(4+c) :5 = 4 - 3 = 1

4 + c = 1 x 5 = 5

c = 5 - 4 = 1