Question

Find the value of :

‌ 2x+1 3
7 ÷ 49 = 7​

Answer 1

Step-by-step explanation:

$\frac{ {7}^{2x + 1} }{ {7}^{2} } = {7}^{3}$

$\frac{ {7}^{2x + 1 - 2} }{1} = {7}^{3}$

${7}^{2x - 1} = {7}^{3}$

Bases same so Power should be equal

$2x - 1 = 3$

$2x = 3 + 1$

$2x = 4$

$x = \frac{4}{2}$

$x = 2$

Answer 2

Answer:

Answer is 2

Step-by-step explanation:

7*2x+1 ÷ 49 = 7*3

7*2x+1 ÷ 7*2 =7*3

7*2x+1=7*3×7*2

7*2x+1=7*5

as bases are same,so

2x+1=5

2x=5-1

2x=4

x=4/2

x=2