exam Maths Puzzle Numerical Ability

I need help with solving inequalities, w+3>7w-9

as far as i seem to get (and then i get lost) is

w+3>7w-9

Divide 3 by 3 and 7w-9 by 3
and then im stuck help!

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exam Other Question

y=0
how do you find the slope of a line parallel to the graph of each equation?
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8^x=(1/16)^(x-4)