Answer:
x=3
Step-by-step explanation:
minus 3x on both sides
after you've subtracted 3x from both sides you then need to minus 12 from both sides
Last step is going to be dividing by 2 and you should get the answer of 3
(x^2-1)(x^2+7) should be your answer
Answer: 2
Step-by-step explanation:
Answer:
0.274g/cm^3
Step-by-step explanation:
density = mass / volume
so d = 575.4 / 210
d = 0.274g/cm^3
Here, 3t - 7 = 5t
5t - 3t = -7
2t = -7
t = -7/2
Then, 6t = 6(-7/2) = 3(-7) = -21
In short, Your Answer would be -21
Hope this helps!
