Question

\(\dfrac{x+1}{3}=\dfrac{1-3x}{-5}\)

Trong đó, x=

Answer 1

\(\dfrac{x+1}{3}=\dfrac{1-3x}{-5}\)

=>\(-5\left(x+1\right)=3\left(1-3x\right)\)

=>\(5\left(x+1\right)=3\left(3x-1\right)\)

=>5x+5=9x-3

=>5x-9x=-3-5

=>-4x=-8

=>x=2