X:3=75 75:x=3 x+23=28 65-x=50 решить уравнения
1) x : 3 = 75 x = 75*3 x = 225 2) 75 : x = 3 x = 75/3 x = 25 3) x + 23 = 28 x = 28 - 23 x = 5 4) 65 - x = 50 -x = 50 - 65 -x = -15 x = 15
Х=75×3=225 х=75÷3=25 х=28-23=5 х=65-50=15