Use elimination to solve this system of equations. X-4y=-11 and 5x-7y=-10
1 answer:
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You can subtract the numbers in the parenthesis:
(3-11) = (-8)
Multiply the denominator to both sides so it cancels out and isolates the variable
-8 and -8 cancels out
k = 160
Quick check:
- 20 = - 20
Yes its right
the answer is: k =160