Solution let p be the perimeter of the triangle then 3p=75-2p collect the like terms 3p+2p=75 5p=75 divide both side by 5 5p/5=75/5⇒p=15. therefore the perimeter of triangle is 15 units
It has exactly one solution. If you graph both of these equations on desmos, you will see that they only cross once. Therefore you only have one solution