Respuesta :
Answer: 2x-5
Step-by-step explanation:
Group like terms. (7x-5x) and (-25+30)
7x-5x is 2x.
The 25 becomes negative due the sign in front of it. -25+30=5.
You cannot solve unlike terms, so your answer is 2x-5.
Step-by-step explanation:
7x-5x-25+30=0
2x+5=0
2x=-5
divide bth side by 2
x=-2.5
