X+200+x+100+x=1600 please!
200+100=300 1300-3х Х=1300÷3 Х=433
433 * 3 = 1299
X+200+x+100+x=1600 3x = 1600 - 200 - 100 3x = 1300 x =
433.3 d j,otv ,eltn hfdty [
в общем х равен 433,3