exam Maths Puzzle Numerical Ability

-(8n-2)=3+10(1-3n)



i do not get what to do with the negative sign on the outside of the parenthesis

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exam Other Question
2x+11=-19 Given the function K described by k(x)=x+3, find each of the following:

k(0) =
k(-14) =
k(-10) =
k(17) =
k(y+1) =