Graph y+x=45 and 2y+4x=130. how many solutions?

one solution --> (20,25)

Step-by-step explanation:

no, x cannot be the same number. in all of them, x is 1. for one input there is another output. g is not a function

give brainliest

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!