Question

Solve this equation:- 3x-1/5-x/7=3​

Answer 1

Answer:

The above question can be written as, ⇒[(7×(3x−1))−(5×(x))/35]=3 [Taking L.C.M of 5 and 7]

⇒((21x−7)−(5x))/35=3

⇒(21x−7−5x)/35=3

⇒(16x−7)/35=3...[Multiplying both side by 35]

⇒[(16x−7)/35]×35=3×35

⇒16x−7=105

⇒16x=105+7

⇒16x=105+7

⇒16x=112...[Multiplying both side by 1/16]

⇒16x×(1/16)=112×(1/16)

⇒x=7

By substituting 7 in the place of x in given equation, we get

LHS,

=(16x−7)/35

=((16×7)−7)/35

(112−7)/35

=(105/35)

=3

RHS,

=3

By comparing LHS and RHS

⇒(4/3)=(4/3)

∴LHS=RHS

Hence, the result is