Answer: x=1, y=-4
Step-by-step explanation:
There are different ways to solve system of equation
- graphing
- substitution
- elimination
In your case, since they are all put y on one side, then we should use substitution.
we should substitute y
-7x+3=-x-3
-7x+x=-3-3
-6x=-6
x=1
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substitute x into any one of the equation to find y
y=-7x+3
y=-7×1+3
y=-7+3
y=-4
y=-x-3
y=-1-3
y=-4
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