aidengalvin20
11.07.2019 •
Mathematics
Solve y = 3x – 2 x – y = 4 by using show all work! !
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Ответ:
x=-1, y=-5
Step-by-step explanation:
y=3x-2 i
x-y=4 ii
x-4=y
Substituting the value of y in equation i,
x-4=3x-2
2-4=3x-x
-2=2x
x=-1.
From ii,
-1-4=y
y=-5.
x=-1, y=-5
Ответ:
she saves $1.25 per week x 24 weeks is $30