Question

Let us solve :
${49}^x=7^3$

Answer 1

${49}^x=7^3$

$\Rightarrow (7^2{)}^x=7^3$

$\Rightarrow 7^{2x}=7^3$

$\Rightarrow 2x=3$ $[\because a^m=a^n⟹m=n]$

$x=\frac{3}{2}$.