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put this solution on YOUR website!7 ^ (x + 3) = 49 ... in case you fingered wrong ...
7 ^ (x + 3) = 7 ^ 2
x + 3 = 2
x = -1
~~~~~~~~~~~
7 ^ ( x + 3 ) = 48
log 7 ^ ( x + 3 ) = log 48
(x + 3)log 7 = log 48
x + 3 = log 48 / log 7
x = (log 48 / log 7) - 3
About -1.0106