Solve : 5x−(4x+5x−47)=4x−143.
5x−(4x+5x−47)=4x−143.5x−(28x+5x−47)=4x−14335x−33x+47=4x−1433×(2x+4)=7×(4x−14)6x+12=28x−9822x=98+12x=11022=5
Solve (4x4−5x3−7x+1)÷(4x−1)