Question

x +20x x+10x x+40x x+30=205000 giải giúp mình nhé

Answer 1

\(x+20\times x+10\times x+40\times x+30=205000\)

\(x\times\left(1+20+10+40\right)+30=205000\)

\(x\times71+30=205000\)

\(x\times71=205000-30\)

\(x\times71=204970\)

\(x=204970:71\)

\(x=\frac{204970}{71}\)