- 6(1 + 7k) + 7(1 + 6k) < - 2

- 6 - 42k + 7 + 42k < -2

1 < 2

You didn't do anything wrong. The variable, k went away, but as you can see the final "product" is an INEQUALITY that's TRUE. That's because - 42k + 42k = 0.

This means that you can substitute ANY VALUE for k and it'll be 1. I repeat, regardless of the value you substitute for k, the value on the left side WILL ALWAYS be 1. Try it!!

This means the INEQUALITY has:  

RELATED QUESTIONS

Find Pk + 1 if
Pk = 7 + 13 + 19 +...+[6(k - 1)+1] + (6k + 1) 
A.) 7 + 13 + 19 + …+[6(k... (answered by ikleyn)

Find Pk + 1 if
Pk = 7 + 13 + 19 +...+[6(k - 1)+1] + (6k + 1)

A.) 7 + 13 + 19 + …+[6(k  (answered by ikleyn)

Find the value of k and 17th term of each of the following arithmetic sequence.

1.... (answered by rothauserc)

| 2x - 7 |  >  10 (problem)

(my wrong answer)

2x-7>\(10)

2x-7>10

2x>17... (answered by stanbon)

please explain what i am doing wrong... (answered by MathLover1)

I cannot understand how (7-1)^2 equals 36 but 7•7-1-1 equals 47 what am I doing wrong?  (answered by richard1234,MathTherapy)

for the given functions f ands g find the indicated composition.  {{{ f(x)5x+7 }}},{{{... (answered by edjones,stanbon)

You went trout fishing and caught 6 trout fish.  The lengths are 8 5/8, 10 1/2, 9 1/4, 8... (answered by stanbon,Earlsdon)

Hi, I am stumped with this problem, I asked my teacher to explain and went home to try... (answered by jsmallt9)