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monica10
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List the three methods for solving equations and give a brief explanation of each method.
 one year ago
 one year ago
monica10 Group Title
List the three methods for solving equations and give a brief explanation of each method.
 one year ago
 one year ago

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Hero Group TitleBest ResponseYou've already chosen the best response.1
Three methods for solving SYSTEMS of equations?
 one year ago

Hero Group TitleBest ResponseYou've already chosen the best response.1
1. By Elimination: If you have a system of the form: 3x `+ 2y` = 4 4x ` 2y ` = 10 you notice that 2y and 2y are opposites, then you combine the equations together to eliminate the y variable. When you do that, you get: 7x = 14 Solving for x to get x = 2, which means y = 1 2. By substitution If you have a system of the form: x = `2y + 4` 2x  y = 8 Then you notice that one of the variables is isolated. In this case, x is isolated in the first equation, therefore you substitute the expression for x into the second equation to get: 2( `2y + 4`)  y = 8 Then solve for y: 4y + 8  y = 8 4y  y + 8 = 8 3y = 8  8 3y = 0 y = 0/3 y = 0 So y = 0. Substituting y back in to the original equation yields x = 4 By graphing: If you have a system of the form y = 2x + 4 y = 7x  3 You can solve the system by graphing since both equations are in the form y = mx + b to find the solution point (x,y).
 one year ago

monica10 Group TitleBest ResponseYou've already chosen the best response.0
Thank You!
 one year ago
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