Christa had a music lesson every week for one year.
1 answer:
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Answer:
The values of x and y to the given equation are x=3 and y=-1
The solution to the given equation is (3,-1)
Step-by-step explanation:
Given equations are
To solve given equations by using elimination method :
Mutliply the equation (2) into 2 we get
Now adding the equations (1) and (3)
_______________
Therefore y=-1
Now substitute the value of y=-1 in the equation (1) we get
-2x+3(-1)=-9
-2x-3=-9
-2x=-9+3
Therefore x=3
The values of x and y to the given equation are x=3 and y=-1
The solution to the given equation is (3,-1)