Holt Algebra 1 2-1 Solving Equations by Adding or Subtracting Solving Equations by Adding or Subtracting Holt Algebra 1 Warm Up Warm Up Lesson Presentation.
Equation Vocabulary. Warm-Up 2(1 + 6x) Find the surface area of a cube where the side (s) is 5 cm. Surface area= 6s 2.
