X+y=4;2x-y=5solve by inversion and reduction method – InterviewSolution

1.

X+y=4;2x-y=5solve by inversion and reduction method

Answer»

Answer:

3;4

Step-by-step EXPLANATION:

X+y=4

2x-y=5

sum

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

3x=9

x=3

put x on EQUATION 1

3+y=4

y=4-3

y=1

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