Question

Tìm x thuộc Z

30.(x + 2) - 6(x - 5) - 24x = 100

Answer 1

Vì 10 :0 ko thỏa mãn

\(\Rightarrow x\in\varnothing\)

Answer 2

Ta có: \(30.\left(x+2\right)-6.\left(x-5\right)-24x=100\)

\(\Leftrightarrow30x+60-6x+30-24x=100\)

\(\Leftrightarrow0x+90=100\)

\(\Leftrightarrow0x=10\)

\(\Leftrightarrow x=0\)