👤

20+2x-10-x=100-75 ??????????

Răspuns :

20+2x-10-x=100-75
20+2x-10-x=25
2x-x=25-20+10
x=5+10
x=15
20+2x-10-x=100-75
10 + 2X-X = 25
X = 25 - 10
X = 15

Verificare:
20+2×15 -10 - 15 = 25
20+30-10-15 = 25
25 = 25