Question

find the value of x so that 7^2x+1 + 49=7^3​

Answer 1

Answer:

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Step-by-step explanation:

7^ (2x+1) / 49 = 7³

7^ 2x+1/7²=7³

7 ^ 2x+1-2=7³

7^ 2x-1 =7³

2x-1=3

2x=4

x=2

(or )

7(2x+1) /49=7³

2x+1/7 = 343

2x+1 = 343*7

2x+1=2401

2x = 2401-1=2400

x=1200