Is −10 − 5 equal to −10 + (−5)? Explain in
terms of additive inverses.

x is variable or an unknown value to find

example:

2x = 5 which means x = 3

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!