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Science

PS3: Energy

HSPS32. Develop and use models to illustrate that energy at the macroscopic scale can be accounted for as a combination of energy associated with the motion of particles (objects) and energy associated with the relative position of particles (objects).
Mathematics

Algebra: Reasoning with Equations & Inequalities (912)

HSA.REI.C.5(+) Prove that, given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions.