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Sewanhaka High School Mrs. Lidowsky, Principal Math 8 Mr. Long, Teacher Period:______________ Date:________________________ Name:___________________________________ (Use the back as more room to show your work.) H.W. #42: Using Substitution to Solve a System of Equations Directions: Answer the following questions. Show your work. Solve and check each system of equations. 1) 2) 3) y=x–3 y = 2x 4) 5) y = 3x + 8 8x + 4y = 12 6)