exam Maths Puzzle Numerical Ability

I need help with this: graph f(x)=-2(x+3)-2 How do I do this?

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exam Other Question

Solve by using addition or substitution.If a unique solution does not exist, state whether it is inconsistant or dependant.
10x+2y=7
y=-5x+3

Thanks again for your valuable tim I have been working on this problem and am having extreme difficulty, I would appreciate any help, thanks

3x4 - 81x the 4 should be small and above the x.