For Each Systems Of Equations Below, Choose The Best Method For Solving, And Solve. , Show Your Work., A. 3x+Y=24, -X-Y=-10

For each systems of equations below, choose the best method for solving

and solve.

Show your work.
a. 3x+y=24
-x-y=-10

Step-by-step explanation:

Lets do the Elimination Method

3x+y=24

-x-y=-10

_______

2x = 14

x = 7

And then substitute the value of x to one of the equations

3x + y = 24

3(7) + y = 24

21 + y = 24

y = 24 - 21

y = 3

____CHECKING____

3x+y=24

3(7) + 3 = 24

24 = 24 TRUE

-x-y=-10

-(7) - 3 = - 10

-7-3 = 10

-10 = - 10True


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