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Paha777 [63]
3 years ago
9

Y= 3x - 15 x+y=13 find the solution

Mathematics
2 answers:
Pepsi [2]3 years ago
6 0

Answer:

x+3x-15=13

4x=28

x=7

......

vfiekz [6]3 years ago
5 0

Answer:

y = 3x - 15 \\  \\ to \: find \: x \: substitute \: y \: into \: 0\\  \\ 0 = 3x - 15 \\  - 3x =  - 15 \\ divide \: both \: sides \:by \:  - 3 \\  \\ x = 5

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