Mathematics, 17.12.2019 02:31, luc58

Show the steps and solution explanations.
a. x+4y=6
x+4y=15

b. x+4y=7
3x +12y=21

c x-y=1
2x +y=4

Answers: 1

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Do you know the correct answer?

Show the steps and solution explanations.
a. x+4y=6
x+4y=15

b. x+4y=7
...