Question

4. Să se afle x din egalitatea:
[(x + 550:6). 4-100): 20 - 30​

Answer 1

Răspuns:

Explicație pas cu pas:

[(x + 550:6)4-100): 20 - 30​=0  

[(x + 550:6) 4-100): 20=30

(x + 550:6) 4-100=600  

(x + 550:6) 4=700           x + 550:6=175        6x=175×6-550    6x=500

x=500/6

Answer 2

Răspuns:

$((x + 550:6)*4-100): 20 = 30\\\\(x + 550:6)*4-100 = 30 * 20\\\\(x + 550:6)*4 = 600+100\\\\(x + 550:6) = 700 : 4\\\\x + 550:6 = 175\\\\6x +550 = 175 * 6\\\\6x = 1050 - 550\\\\ 6x = 500\\\\\boxed{x = 500 : 6}$