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soldier1979 [14.2K]
3 years ago
7

Solve x + 3y = 9 3x – 3y = -13 (1 point)

Mathematics
1 answer:
Mariana [72]3 years ago
8 0

Answer:

The values of x and y to the given equations are x=-1 and y=\frac{10}{3}

The solution is (-1,\frac{10}{3})

Step-by-step explanation:

Given equations are x+3y=9\hfill (1)

and 3x-3y=-13\hfill (2)

to solve the given equations by elimination method :

Adding the given two equations (1) and (2) we get

x+3y=9

3x-3y=-13

_______________

4x=-4

x=-\frac{4}{4}

Therefore x=-1

Now substitute the value x=-1 in equation(1) we get

(-1)+3y=9

3y=9+1

y=\frac{10}{3}

Therefore the values of x and y to the given equations are x=-1 and y=\frac{10}{3}

The solution is (-1,\frac{10}{3})

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