Question 482848
you have a triangle, sides length:

{{{a=15-x}}}

{{{b=23x-3}}}

{{{c=3x-5}}}

The perimeter of that triangle is {{{35ft}}};


so, the perimeter is {{{P=a+b+c}}}

{{{35=(15-x)+(23x-3)+(3x-5)}}}

{{{35=15-x+23x-3+3x-5}}}

{{{35=7+25x}}}

{{{35-7=25x}}}

{{{28=25x}}}

{{{28/25=x}}}

{{{1.12=x}}}


now find:

{{{a=15-x}}}...->...{{{a=15-1.12}}}..->...{{{a=13.88}}}

{{{b=23x-3}}}...->...{{{b=23*1.12-3}}} ...->...{{{b=25.76-3}}}...->...{{{b=22.76}}}

{{{c=3x-5}}}...->...{{{c=3*1.12-5}}}...->...{{{c=3.36-5}}}..->...{{{c=-1.64}}}


check:


the perimeter is {{{P=a+b+c}}}

{{{35=13.88+22.76-1.64}}}

{{{35=36.64-1.64}}}

{{{35=35}}}