# SOLUTION: find the value of a that makes the ordered pair a solution of the equation. y=3x+7; (-3,a) 2x+4y=14; (-5,a) y=11-7x; (a,-10) 9x-5y=-9; (a-1,9)

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 Question 397535: find the value of a that makes the ordered pair a solution of the equation. y=3x+7; (-3,a) 2x+4y=14; (-5,a) y=11-7x; (a,-10) 9x-5y=-9; (a-1,9)Answer by ewatrrr(10682)   (Show Source): You can put this solution on YOUR website! ``` Hi Note: ordered pairs are given as (x,y) y = 3x+7 (-3,a) |looking for y value y = 3*-3 + 7 y = -2 2x+4y=14 (-5,a) |looking for y value 2*-5 + 4y = 14 y = 6 y = 11-7x (a,-10) |looking for x value -10 = 11-7x 7x = 21 x = 3 9x - 5y= -9 (a-1,9) |looking for x value of ordered pair 9x - 5*9= -9 9x = 36 x = 4 | (a-1) = 4 a = 5 ```