Practice problem
Solve the system of equations using substitution. 2x+2y=82x+2y=82x+2y=8 6x+12y=306x+12y=306x+12y=30
x=1x=1x=1 , y=3y=3y=3
x=2x=2x=2 , y=2y=2y=2
x=3x=3x=3 , y=1y=1y=1
x=3x=3x=3 , y=2y=2y=2
Type a concept, like “slope” or “photosynthesis”.