Question

Find the value of y 7x7x7x7x7x7=7y

Answer 1

16807

Explanation:

we are given
`7*7*7*7*7*7=7y.`

first, we can divide both sides by 7.

`7*7*7*7*7=y`. so
`y=7^5.`

we can evaluate
`7^5` by hand since we know
`7^2=49` and
`7^3=343`.

`7^5=343*49=343*(50-1)=17150-343=16807`.

therefore, we have
`y=16807`