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PLEASE HELP DUE IN 10 MIN!!!! Solving systems by elimination 1.) x+2y=10 x+4y=14 2.) 3x+y=9 y=3x+6 3.) 4x+5y=15 6x-5y=18 4.) 5x=7y x+7y=21
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Feb 18, 2023
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PLEASE HELP DUE IN 10 MIN!!!!
Solving systems by elimination
1.) x+2y=10
x+4y=14
2.) 3x+y=9
y=3x+6
3.) 4x+5y=15
6x-5y=18
4.) 5x=7y
x+7y=21
Mathematics
middle-school
Carroll
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Carroll
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12
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1: (38, 24)
2: (1/2, 7.5)
3: (3.3, .35)
I am not sure what the answer to number four is, however I have uploaded my work for the other ones!!!
Mixkat
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Feb 20, 2023
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1) x+2y=10 -> 2x+4y=20
SSS
x=6
6+4y=14
4y=8
y=2
Same method for the rest, just do some multiplication on each one to make either the y or the x equal. If they’re the same sign (pos or neg) use SSS (same sign subtract), if not use DSA (different sign add). You may need to move some of the equations around first^^
Srm
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Feb 23, 2023
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Srm
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