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4x-3y=1 Which is the solution? A.(2,3)              C.(3,2) B(-2,-3)              D.(-3,-2)

jorge__omg.......

by jorge__omg....... at February 26, 2010

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(up) 3 (down)
its B.

tori. tori. February 26, 2010

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    To solve these type of problems the best way is to substitute the x,y with given ordered pair. Then solve the problem and see if they are true. here's what I mean:Let's substitute x,y with A.(2,3):x=2y=34(2)-3(y) = 18-9=1-1=1 NOT TRUE => so this one is not the answer.Let's substitute x,y with B.(-2,-3):x=-2y=-34(-2) - 3(-3) = 1-8 + 9 = 11 = 1 TRUE => this is the answer.     For the most problems, you can do these processes in your head. For example, when you check the A.(2,3), you could say 4 multiply 2 is 8, 3 multiply 3 is 9. 8 is smaller than 9 so the answer will be negative. Therefore this is not the solution. Then move to the next option.I hope this helps.Good Luck.

KamelSadr KamelSadr February 26, 2010

(up) 2 (down)
its B. (-2, -3)!!

a_s_h_l_e_e a_s_h_l_e_e February 26, 2010

(up) 1 (down)
i think its B (-2, -3)

sjyDavid sjyDavid February 28, 2010

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