Algebra

Sove the following equations x+y=12 2x-y=10 media type="youtube" key="XM7Q4Oj5OTc" height="349" width="425"

Watch another Youtube and answer the following questions: media type="youtube" key="PgARVIawA5U" height="349" width="425" media type="youtube" key="O-rrOPPmFgM" height="349" width="425"