Respuesta :

Given :-

  • log 7( 2x +17) = 2 .

To Find :-

  • The value of x .

Solution :-

Given logarithmic equation is ,

[tex]\longrightarrow log_7(2x +17) = 2 [/tex]

As we know that ,

[tex]\longrightarrow log_a b = c [/tex]

can be rewritten as ,

[tex]\longrightarrow a^c = b [/tex]

So , that

[tex]\longrightarrow 7^2 = 2x + 17 [/tex]

Simplify ,

[tex]\longrightarrow 49 = 2x + 17 [/tex]

Subtract 17 from both sides ,

[tex]\longrightarrow 2x = 32 [/tex]

Divide both sides by 2 ,

[tex]\longrightarrow x = 16 [/tex]

Hence the required answer is 16 .

Refer to the attachment!

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