Helppp ? :D
Use the substitution method.
Start with the second equation.
-x+y=-7
y = x-7
Now, substitute that into the first equation:
3x + 7(x-7) = 1
Solve for x.
Use that value in either equation to find y.
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Verified answer
Use the substitution method.
Start with the second equation.
-x+y=-7
y = x-7
Now, substitute that into the first equation:
3x + 7(x-7) = 1
Solve for x.
Use that value in either equation to find y.