Question

1+{2×[3+(x-4)×5]÷6}×7=8

Answer 1

Răspuns:

Explicație pas cu pas:

1 + [2*(3 + 5x - 20) : 6] x 7 = 8

[2*(3 + 5x - 20) : 6] x 7 = 7

2*(3 + 5x - 20) : 6 = 1

2*(3 + 5x - 20) = 6

3 + 5x - 20 = 3

5x = 3 + 20 - 3 = 20

x = 4

Answer 2

Răspuns:

1+{2×[3+(x-4)×5]÷6}×7=8

{2×[3+(x-4)×5]÷6}×7=8-1

2·[3+(x-4)·5]:6=7:7

2·[3+(x-4)·5]:6=1·6

3+(x-4)·5=6:2

(x-4)·5=3-3

x-4=0:5

x=4