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Sagot :
3x+3y=33 notice how in the bottom equation you can multiply y by 3 to get
2x+y=19 what is on top. This sets you up for an easy case of elimination! Multiply everything on the bottom by -3 to start.
3x+3y=33 Then you can cross out the y's (because they're opposite) and
-6x-3y=-57 combine equations
-3x=-24 From there it is pretty straight forward to find x: Just divide -24 by -3
x=8 Then plug it back into any of your original equations and find y
3(8)+3y=33 You should find that y=3
2x+y=19 what is on top. This sets you up for an easy case of elimination! Multiply everything on the bottom by -3 to start.
3x+3y=33 Then you can cross out the y's (because they're opposite) and
-6x-3y=-57 combine equations
-3x=-24 From there it is pretty straight forward to find x: Just divide -24 by -3
x=8 Then plug it back into any of your original equations and find y
3(8)+3y=33 You should find that y=3
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