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timofeeve [1]
4 years ago
5

2x+5y=11 and 4x+3y=1 solve with elimination

Mathematics
1 answer:
storchak [24]4 years ago
7 0
Multiply you first equation by 2 to get 4x + 10y = 22
Now the x terms can be eliminated and cancelled out using elimination.
4x + 10y = 22
4x + 3y = 1

To eliminate you need to "subtract", so you need to multiply one of the equations by -1. 

4x + 10y = 22
-4x -3y = -1
------------------
0 + 7y = 21
y = 3

Now plug 3 into either one of the equations to get x.
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