Question

3× Х= 420; 4× а = 960; у × 3= 750; b ×5 = 850; 640 ÷ × = 4; × ÷ 2 = 260. Помогите пожалуйста!!!

Answer 1

х = 420/3 = 140
а = 960/4 = 240
y = 750/3 = 250
b = 850/5 = 170
x = 640/4 = 160
x = 260*2 = 520