Which is the value of x in the solution to the following system of equations? x-y=-3 x+3y=5
2 answers:
Answer:
x = -1
Step-by-step explanation:
The system of equations is given as x - y = -3 --------(1) and
x + 3y = 5 -------(2)
We have to find the value of x
For which we will eliminate y from these equations.
We multiply equation (1) by 3 and add it to equation (2)
3(x-y) + (x+3y) = -9 + 5
(3x + x) + (3y - 3y) = -4
4x = -4
x = -1
Let's see first x-y=-3. You can find x and x=-3+y Then you replace x in x+3y=5 -3+y+3y=5 4y=8 y=2 But you have to find x too. x=-3+2 x=-1 The answers are x=-1, y=2
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Step-by-step explanation:
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Step-by-step explanation: