Open Question: Can someone help me, i've 4 tasks, mathematic?

Open Question: Can someone help me, i've 4 tasks, mathematic?

1) log(base2)(x+2)=6-log(base2)(x+14)

2) log^x+7 -log2=log(x-5)-log8

3) log(base3) (2*3 exponent3 -1)= -1

4) log (X on squared + X - 2) = 1

5) log x + log(x-3)
--------------- = 2
log( -x+6)

6) log(x+3) + log(x-3)=log7

7) log(base x+2) (5x+6)=2


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