Find-x when x=- 7/51

would -x = 7/51

To find the value of x when x = -7/51, you simply substitute -7/51 into the equation or expression where x is given.

For example, if you were given the equation 2x + 3 = 0 and asked to find the value of x when x = -7/51, you would substitute -7/51 in place of x:

2(-7/51) + 3 = 0

Now, simplify the equation:

-14/51 + 3 = 0

To combine the fractions, find a common denominator:

-14/51 + (3 * 51/51) = 0

-14/51 + 153/51 = 0

Now, add the fractions:

(153 - 14) / 51 = 0

139/51 = 0

Since 139/51 does not equal 0, x = -7/51 is not a solution to the equation 2x + 3 = 0.

If you have a different equation or expression, substitute -7/51 into it and perform the necessary calculations to find the value of x.