exam Maths Puzzle Numerical Ability

log2(x+3)+log2(x-3)=4

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Could someone be so kind in helping me with this problem?

I need to solve the following systems by substitution:

4x - 12y = 5
-x + 3y = -1

Thanks so much,
Ashley Graph the numbers on a number line. Then write two inequalities that compare the two numbers.

# 26. -1 5/6 and -1 7/9