For this kind of problem is nneded to replace a letter b by a numerical value. Thne find the missing variable x .
then replace b = 5 in equality
4(5x - 3) = 8 ( x-2)
now eliminate parenthesis, by PEMDAS method
4•5x - 3•4 = 8x - 8•2
20 x - 12 = 8x - 16
now reorganize letters and numerical values
20x - 8x = -16 + 12
12x = -4
then finally x= -4/12 = -1/3
Answer: z _> -10
Step-by-step explanation:
the school is at 0, and Anna's house would be at 2.5 because it is east (to the right of 0) and Ben's would be -2 (because it is west...to the left of 0)
Step-by-step explanation:
Let the number be x
2 more than a number = x + 2
First, you would add 9x to both sides so that you get:
x^2 + 9x + 20 = 0.
Then, you want to factor. You want coefficients of x that add to 9 and have the constants add to 20:
(x + 5) * (x + 4) = 0
The answer is (C).