4x-5y=-20 and 2x+y=4

Please solve for x and y simultaneously
in Other Math Topics by Level 1 User (200 points)

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1 Answer

line 1...2x+y=4 become y=-2x+4

line 2...4x-5y=-20, or 5y=4x+20 or y=(4/5)x +4

so -2x+4=(4/5)x+4

-2x=(4/5)x

impli x=0, so y=-2*0+4...y=4

(0,4)
by

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