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

October 2021 0 4 Report

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