exam Maths Puzzle Numerical Ability

Solve the equation for x:
x^2+4x+4=7
I am not sure where to start with this one. It is strange because of the extra number. How do I do this problem? PLEASE HELP! THANK YOU!
ac

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exam Other Question

How would I solve this by substitution
6x-3y=6
y=2x+5
Please help to graph on a number line

-x + 5 > 0; D ={Reals}