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anonymous
 one year ago
Solve the system using the method of your choice: y = 3x – 4
2x + 4y = 26
anonymous
 one year ago
Solve the system using the method of your choice: y = 3x – 4 2x + 4y = 26

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texaschic101
 one year ago
Best ResponseYou've already chosen the best response.0substitution ok with you ?

texaschic101
 one year ago
Best ResponseYou've already chosen the best response.0y = 3x  4.....so we sub in 3x  4 for y back into the other equation 2x + 4y = 26 2x + 4(3x  4) = 26  distribute through the parenthesis 2x + 12x  16 = 26  add 16 from both sides 2x + 12x = 26 + 16  combine terms 14x = 42 x = 42/14 x = 3 now sub 3 in for x in either equation to find y y = 3x  4 y = 3(3)  4 y = 9  4 y = 5 we can even check our answers 2x + 4y = 26 2(3) + 4(5) = 26 6 + 20 = 26 26 = 26 (correct) so x = 3 and y = 5....or (3,5)
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