Solve the following system of equations: x - 2y = -10 y= 3x x - 2y = -10 x - 2( 3x ) = -10 Since we know y = 3x, substitute 3x for y into the first equation. x - 6x = -10 Simplify: Multiply 2(3x) = 6x. -5x = -10 Simplify: x - 6x = -5x -5x = -10 -5 -5 Solve for x by dividing both sides by -5. x= 2 The x coordinate is 2. SOLVING EQUATIONS - S.O.S. Math This sections illustrates the process of solving equations of various forms. It also shows you how to check your answer three different ways: algebraically, graphically, and using the concept of equivalence.The following table is a partial lists of typical equations. LINEAR EQUATIONS - Solve for x in the following equations. Problem Solving Skills and Techniques - Ryan's Tutorials Learn creative problem solving skills and techniques. Also a discussion on the process and theory behind powerful problem solving and creative thinking. When you are problem solving you are doing one of two things. Either you are fixing something that is broken, or you are building something. 15 Techniques to Solve Math Problems Faster | Prodigy
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