-x- y=-4
-2x+y=-5
How do you it for solving eliminating
1 answer:
Answer:
x = 3, y = 1
(3,1)
Step-by-step explanation:
Elimination is a method of solving systems where we add or subtract the two equations to "eliminate" one of the variables.
Take a look at our system. We have a -y and a +y. If we added those together, they would cancel!
-x- y=-4
-2x+y=-5 +
--------------
-3x + 0y = -9
It worked! No more y. Solve for x!
-3x = -9
<u>x = 3</u>
Plug x back in to get y.
-x - y = -4
-3 - y = -4
-y = -1
<u>y = 1</u>
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