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Solve using the elimination method 3x+5y=9
X-20y= -62

Sagot :

3x+5y=9 and x-20y=-62
Multiply the first equation by -4
-4(3x+5y=9)       =     -12x-20y=-36

Then subtract the two equations:

 -12x-20y=-36
-(x    -20y=-62)
-13x+0y=26

-13x=26
x=-2

3(-2)+5y=9
-6+5y=9
5y=15
y=3
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