## Introductory Algebra for College Students (7th Edition)

2(w+1) = 3(w-1);7 To check whether 7 is the solution of the given expression, substitute 7 for w. 2(7+1) = 3(7-1) (perform the operations in parentheses) 2*8 = 3*6 (multiply 2*8 and 3*6) 16 $\ne$ 18 The statement is false, because the values on both sides of the equation are different. Therefore, the number 7 is not the solution of the equation.