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anonymous
 4 years ago
Solve using linear systems.
2(x1)  3(y3) = 0
3(x+2)  (y7) = 20
anonymous
 4 years ago
Solve using linear systems. 2(x1)  3(y3) = 0 3(x+2)  (y7) = 20

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Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.12x23y+9=0 2x3y=7 3x+6y+7=20 3xy=7

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.1So now we have: 2x3y= 7 3x  y = 7

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.1Let's take that second equation and solve it for y. We would get y=3x7

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0wouldn't it be y = 3x + 7

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0oh wait.. y = (3x+7) = what u said yes go on

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.1now multiply by 1 to get y

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.1So let's take that value for y which is 3x7 and put it in the first equation in place of y

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0everything is clear till now

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.12x9x+21=7 7x=28 x=4 But y = 3x7 y=3(4)7 y=127 y=5 So the solution of the system is the ordered pair (4,5) and if you graphed the two equations you were given the lines would cross at (4,5)
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