Question

Please hurry. Thank you in advance

Answer 1

The value of x in this equation is -23

Explanation:

The given equation is:

`-x-8 = 15`

The given equation is a linear equation in one variable. The solution of the equation requires isolating x on one side of the equation.

Properties of equality will be used to find the solution.

Using Addition property of equality

Adding 8 on both sides

`-x-8+8 = 15+8\\-x = 23`

Multiplication property of equality

Multiplying both sides by -1

`x = -23`

Verification:

`-x-8 = 15\\-(-23)-8 = 15\\23-8 = 15\\15 = 15`

Hence,

The value of x in this equation is -23