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olivernolasco23
04.02.2020 •
Mathematics
Simplify 3(6 – 4)2. i am now adding words to make my question 20 figures so i can write it.
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Ответ:
Ответ:
Ответ:
Step-by-step explanation:
3x+4y=−23(1)
x=3y+1 (2)
Putting (2) in (1)
3(3y + 1) + 4y = -23
9y + 3 + 4y = -23
9y + 4y = -23 - 3
13y = -26
y = -26/13
y = -2
Putting y into (2)
x=3y+1
x = 3(-2) + 1
x = -6 + 1
x = -5