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Solve the following system of equations. -3x-7y=-3-2x+5y=-2

User Joa Ebert
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1 Answer

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1) Let's solve that system by elimination. We'll eliminate the x terms firstly:

Since the LMC, between 3 and 2 is 6 let's multiply the first and the second equation to get 6x

-3x-7y=-3 x -2

-2x+5y=-2​ x 3

6x +14y= 6

-6x+15y=-6

-------------------------

0 + 29y = 0

y= 0

2) Now let's plug into one of those equations, usually the simpler one, that value for y. To find out the x.

-2x +5y=-2

-2x +5(0) =-2

-2x= -2

2x=2 Divide both sides by 2

x=1

3) So the solution for this system is (1,0).

User Hypheni
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