SebastianMonroy72 SebastianMonroy72

23-11-2018
Mathematics

contestada

consider the following systems of equations 2x+3y=45 and x+y=10 what is the x value of the solution for this system

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hannamh2003 hannamh2003

23-11-2018

x=-15 i think this is right i may be wrong though

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Аноним Аноним

23-11-2018

2x + 3y = 45 ............................(1)

x + y = 10 Multiply by -3:-

-3x - 3y = -30 ..........................(2)

Add equations :- (1) + (2) :-

-x = 15

x = -15 (answer)

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