Question Number 69433 by azizullah last updated on 23/Sep/19
Answered by Kunal12588 last updated on 23/Sep/19
$$\mathrm{630}−\mathrm{7}{x}=\mathrm{3}{x} \\ $$$$\Rightarrow{x}=\mathrm{63} \\ $$
Commented by azizullah last updated on 24/Sep/19
$$\:\:\:\:\:\:\:\:\boldsymbol{\mathrm{Good}}\:\boldsymbol{\mathrm{method}}......\:\boldsymbol{\mathrm{thanks}}\:\boldsymbol{\mathrm{sir}}. \\ $$$$ \\ $$$$ \\ $$