Answer:
To do this, you need to multiply out the expressions. This is a bit tedious, but remember like FOIL for binomials, for these trinomials you must multiply each term. If you need a step-by-step, I'd be happy to provide it. Let me know.
Once you have simplified the expression, you get
-x-9/2x-4
But, the problem stipulates that a must equal 1. We can equivalently factor out the negative sign and put it on the denominator with no change to write
x+9/-(2x-4) = x+9/-2x+4
So, seeing where each coefficient corresponds between the two expressions, you get a = 1, b = 9, c = –2, and d = 4.
Answer:
-3
Step-by-step explanation:
4x-2x=2-8
2x=-6
x=-3
Answer:
84
Step-by-step explanation:
See the attached document.
Answer:
Step-by-step explanation:
hypotenuse is double the shorter length.
hypotenuse=2×7=14 in
Answer:
B. (-3, -6)
Step-by-step explanation:
(1) 6x - 4y = 6
(2) -6x + 3y = 0 Add (1) and (2)
-y = 6 Multiply each side by -1
y = -6 Substitute in (2)
-6x +3(-6) = 0 Remove parentheses
-6x – 18 = 0 Add 18 to each side
-6x = 18 Divide each side by -6
x = -3
The solution is (-3, -6).
