Question 318496
The perimeter of a rectangle is,
{{{P=2L+2W=98}}}
{{{L+W=49}}}
.
.
.
{{{L=W+7}}}
Substituting,
{{{W+7+W=49}}}
{{{2W=42}}}
{{{highlight(W=21)}}}
.
.
.
{{{L=W+7=21+7}}}
{{{highlight(L=28)}}}