Home > CAAC > Chapter 6 > Lesson 6.2.5 > Problem 683
683.
Candice is solving this system: Homework Help ✎

She notices that each equation contains the expression
. Can she substitute for ? Why or why not? Try it for yourself. Does it work?
Substitute
for in the second equation to create one equation with one variable. Then solve for and .
Remember to check your answers.
; use this information to solve for .