\(x\times2-100=1000\)
\(\Leftrightarrow x\times2=1000+100\)
\(\Leftrightarrow x\times2=1100\)
\(\Leftrightarrow x=1100:2\)
\(\Leftrightarrow x=550\)
X x 2 - 100 = 1000
X x 2 = 1000 + 100
X x 2 = 1100
x = 1100 : 2
x = 550
đây nha
\(x.2-100=1000\)
\(\Leftrightarrow x.2=1000+100=1100\)
\(\Leftrightarrow x=\dfrac{1100}{2}=550\)