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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