solve this system of equations

2x-3y=7
3x+y=16

2 answers

Multiply the second equation by 3, to create a +3y term, and then add that to the first equation, to eliminate the y variable.

2x -3y = 7
9x +3y = 48
11x = 55
x = 5
3y = 2x -7 = 10 - 7 = 3
y = 1
2X-3Y=7
3+Y=16

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