In (x-3)= in (7x-23) - In(x+1)

Answer

Formula for lagarythm:logab=c   −−−−>ac=b

Base of ln is e=2,7ln(x−3)=ln(7x−23)−ln(x+1)ln(x−3)=ln(x+17x−23)   ∣subtract ln(x+17x−23)ln(x−3x+17x−23)=0ln((x+1)(x−3)7x−23)=02,70=(x+1)(x−3)7x−231=(x+1)(x−3)7x−23   ∣multiply by (x+1)(x−3)(x+1)(x−3)=7x−23x2−3x+x−3=7x−23x2−9x−26=0x=21(9−185)  or  x=21(9+185)

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