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reduction method 2x-y=13 x+y=-1
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Answer to a math question reduction method 2x-y=13 x+y=-1
Seamus
4.998 Answers
To solve the system of equations using the reduction method, you can eliminate one of the variables by adding the two equations together or subtracting one from the other. Let's eliminate y by adding the two equations:
2x - y = 13
x + y = -1
Now, add equation 1 and equation 2:
(2x - y) + (x + y) = 13 + (-1)
Combine like terms:
3x = 12
Now, isolate x by dividing both sides by 3:
x = 12 / 3
x = 4
Now that you have found the value of x, you can substitute it into one of the original equations to solve for y. Let's use equation 2:
x + y = -1
4 + y = -1
Subtract 4 from both sides to solve for y:
y = -1 - 4
y = -5
So, the solution to the system of equations is:
x = 4
y = -5
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