Answer:
y ⋅ (−3 − 7.8 ⋅ x)
Step-by-step explanation:
Use substitution and substitute y into the other equation. One of the equations already gives you y in terms of x, so use that and substitute it into the other equation. y = 3x - 4
Plug into the other equation: -3y = -9x + 12
-3(3x-4) = -9x + 12
-9x + 12 = -9x + 12
This is an identity. So that means that any value of x makes this equation true. So B.
Answer:
D. -93/20
Step-by-step explanation:
-6/5 is -1.2 in decimal form so then you multiply -1.2 by 3.875 and get -4.65, convert that into a fraction and get -93/20.
Answer:
y4.5
Step-by-step explanation:
Answer:
He made $372
Step-by-step explanation:
1692/ 36=47
47*8=372
