Question

If (7²)x = 1 what is the vaule of x

Answer 1

x=1/49

Explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation

Add 1 to both sides of the equation :

49x = 1

Divide both sides of the equation by 49:

x = 1/49 = 0.020

Hope this helps....

Answer 2

x=4

Explanation:

1 Add 11 to both sides.

2x=7+12x=7+1

2 Simplify 7+17+1 to 88.

2x=82x=8

3 Divide both sides by 22.

x=\frac{8}{2}x=

​2

​

​8

​​

4 Simplify \frac{8}{2}

​2

​

​8

​​ to 44.

x=4x=4

cheek:

1 Let x=4x=4.

2\times 4-1=72×4−1=7

2 Simplify 2\times 42×4 to 88.

8-1=78−1=7

3 Simplify 8-18−1 to 77.

7=7 7=7

(or -3)