2 câu trả lời
#Cr7
a) 200x+35=235
200x=235-35
200x=200
x=200:200
x=1
→ Vậy x=1
b) 30x+80=240
30x=240-80
30x=160
x=160:30
x=163
→ Vậy x=163
200x + 35 = 235
200x = 235 - 35
200x = 200
x = 200 ÷ 200
x = 1
=================
30x + 80 = 240
30x = 240 - 80
30x = 160
x = 160 ÷ 30
x = 163
