Question

6 .(4-x) -4.(x-1)=2x +40 tìm x

Answer 1

=>24-6x-4x+4=2x+40

=>-10x+28=2x+40

=>-12x=12

=>x=-1

Answer 2

\(6\left(4-x\right)-4\left(x-1\right)=2x+40\)

\(\Rightarrow24-6x-4x+4=2x+40\)

\(\Rightarrow-6x-4x-2x=40-24-4\)

\(\Rightarrow-12=12\)

\(\Rightarrow x=\dfrac{12}{-12}\)

\(\Rightarrow x=-1\)