Answer:
Step-by-step explanation:
Assuming that the beginning equation is 
First, we should find the common denominator of each of fractions. For all of these denominators, 60 is the smallest common denominator
Now, we can multiply each side by 60, which will remove the fractions
Now we can add 12 to each side
Now subtract 20x from each side
And lastly, divide each side by 10
Answer:
LCM = 30
Step-by-step explanation:
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Y=3x+19
You add 3x to each side. Because your trying to get y by its self like y=mx+b.
Answer: B
Step-by-step explanation:
Setting the equations equal to each other,
-5x-8 = 4x+1
-8 = 9x + 1
-9 = 9x
x = -1, meaning y=-5(-1)-8 = -3.
Remark
What value of k will make the entire polynomial = 0 when k is meant to be a factor? In brief, solve the polynomial when f(-3) is substituted into the right hand side.
f(x) = 2x3+x2+kx+18
f(-3) = 2x3+x2+kx+18
f(-3) = 2(-3)^3 + (-3)^2 - 3k + 18 = 0
-54 + 9 - 3k + 18 = 0
-54 + 9 + 18 - 3k = 0
-27 - 3k = 0
- 3k = 27
k = 27/ - 3 = - 9
Answer
k = -9
Check
2x^3 + x^2 - 9x + 18 = 0
2(-3)^3 + (-3^2) - 9(-3) + 18 = 0
-54 + 9 + 27 + 18 = 0 Just as it should be.
