Question

What is the value of X if 5^x^+^2=5^9?
X=-11
X=-7
X=7
X=11

Answer 1

Answer:

$\large\boxed{x=7}$

Step-by-step explanation:

$5^{x+2}=5^9\iff x+2=9\qquad\text{subtract 2 from both sides}\\\\x+2-2=9-2\\\\x=7$

Answer 2

Answer:

x=7

Step-by-step explanation:

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