## Question

## Answers

#j=0# ## Explanation:

This requires a lot of moving around and negative knowledge.

#-4j+14=-2(2j-7)# First, we must expand the brackets:

#-2(2j-7) = -4j^2+14# Then we can move on to changing the numbers around (remember to change the signs:

#-4j+14=-4j^2+14#

#-4j+4j^2=-14+14# And then simplify from there:

#j=0# Hope this helped.

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