SOLUTION: 4. Solve the system of equations x + y = 5 x - y = -9
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Question 452981
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4. Solve the system of equations
x + y = 5
x - y = -9
Answer by
mananth(16946)
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x + y = 5
x - y = -9
add the two equations
2x=-4
x=-2
y=7