SOLUTION: Show all your work to receive full credit for this problem.
Use the Substitution method to solve the system of equations. Give your answer as an ordered pair (x,y).
x +
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Question 121547: Show all your work to receive full credit for this problem.
Use the Substitution method to solve the system of equations. Give your answer as an ordered pair (x,y).
x + y = -5
x - y = 3
Answer by algebrapro18(249) (Show Source): You can put this solution on YOUR website!
x + y = -5
x - y = 3
I would start off by solving equation 2 for x
x = 3 + y
now substitute this value into the first equation and solve for y.
3 + y + y = -5 --> Combine like terms
3 + 2y = -5 --> Subtract 3 from both sides
2y = -8 --> divide both sides by 2
y = -4
now that we have a y value we can go back and solve for x.
x = 3 + -4
x = -1
the solution is (-1,-4)
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