Question

Answer 1

mờ qué

Answer 2

phóng to ra

Answer 3

\(x+67,875=234,7\times23\\ \Rightarrow x+67,875=5398,1\\ \Rightarrow x=5398,1-67,875\\ \Rightarrow x=5330,225\)

\(x-786,78=34,67\times9\\ \Rightarrow x-786,78=312,03\\ \Rightarrow x=312,03+786,78\\ \Rightarrow x=1098,81\)

\(x:56=23,4\\ \Rightarrow x=23,4\times56\\ \Rightarrow x=1310,4\)

Answer 4

x = 1310.4