A system of equations is shown below.
1 answer:
Answer:
I: 4x-5y=-10
II: 2x-7y=4
c) multiply the second equation by -2 and add the result to the first equation
II*-2=-4x+14y=-8
add I+II*-2: 4x-5y+(-4x+14y)=-10-8
=9y=-18
Step-by-step explanation:
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