Answer:
=-46
Step-by-step explanation:
F(x)=-3(4)^2+2
F(x)=-48+2
F(x)=-46
Answer:x=2 and y=3
Step-by-step explanation:
Given that y=2x-1
Then, 3x+2y=12
3x+2(2x-1)=12
3x+4x-2=12
7x=14
x=2
y=2(2)-1
y=3
Answer:
12
Step-by-step explanation:
Let n = the number.
2n - 7 = n + 5
n = 12
Let’s check if we got the right answer by substituting 12 for n into the original equation.
2*12 - 7 = 12 + 5
24 - 7 = 17
17 = 17