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algahimnada
03.02.2020 •
Mathematics
Pleeassseee me out.
3x - 12y = 60
x + 2y = 14
Solved
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Ответ:
y = 5 x = 0
Step-by-step explanation:
Ответ:
((16, - 1)
Step-by-step explanation:
Given the 2 equations
3x - 12y = 60 → (1)
x + 2y = 14 → (2)
Rearrange (2) expressing x in terms of y by subtracting 2y from both sides
x = 14 - 2y → (3)
Substitute x = 14 - 2y into (1)
3(14 - 2y) - 12y = 60
42 - 6y - 12y = 60
42 - 18y = 60 ( subtract 42 from both sides )
- 18y = 18 ( divide both sides by - 18 )
y = - 1
Substitute y = - 1 into (3) for corresponding value of x
x = 14 + 2 = 16
Solution is (16, - 1)
Ответ:
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Step-by-step explanation: