Question

Ginny has a total of $\$19$, which is $\$2$ less than John. John has $\$$

Answer 1

Let John has $\$x$.
Accordingly Ginny has $\$(x-2)$.
Given that Ginny has $\$19$.
$\Rightarrow \$x-\$2=\$19$
Add $\$2$ on both sides.
$\Rightarrow \$x-\$2+\$2=\$19+\$2$
$\Rightarrow \$x=\$21$
$\therefore$ John has $\$21$.