x + 10 = 20 x 2
x + 10 = 40
x = 40 - 10
x = 30
tk mk đi mk tk lại cho
x + 10 = 20 x 2
x + 10 = 40
x = 40 - 10
x = 30
k mk mk k lại
x + 10 = 20 x 2
x + 10 = 40
x = 40 - 10
x = 30
k chị nha
\(x+10=20\times2\)
\(x+10=40\)
\(x\) \(=40-10\)
\(x\) \(=30\)
x+10=10×2
x+10=20
x=20-10
x=10
x +10 = 20*2=20*2=40 ma x+10=40 nen x =30