125a+275a+600a=2000
=>a.(125+275+600)=2000
=>1000a=2000
=>a=2
=> (125+275+600).a = 2000
=> 1000.a = 2000
=> a = 2
125a + 275a + 600a = 2000
a*(125+275+600)=2000
a*1000=2000
a=2
đây là toán 4 ms đúng
\(125a+275a+600a=2000\)
\(\Rightarrow\left(125+275+600\right)a=2000\)
\(\Rightarrow1000a=2000\)
\(\Rightarrow a=2000:1000\)
\(\Rightarrow a=2\)
125a+275a+600a=2000
1000a=2000
a=2
dap so
