expressions and equations

Question

Consider this equation:

3(2x + 4) − 7 = −(x − 5) + 7x

Which statement regarding this equation is true?
a. This equation has one solution
b. This equation is an identity
c. This equation has no solutions
d. This equation is undefined

Answer 1

b is correct. the equation is an identity

the equation is true for any value of x

the equation has an infinite number of solutions, all real numbers, or all complex numbers