Determine whether it is true or false that the given number is a solution of the equation.
-20; 7(y - 7)= 91

Question

Quizplus · Accepted Answer

Substitute y = 20 into the equation:
7(y - 7) = 91
7(20 - 7) = 91
7(13) = 91
91 = 91
Since the equation is true, y = 20 is a solution. Substituting 20 for y in the equation 7(y - 7)= 91, we get:
7(20-7) = 7(13) = 91
Since this is the same as the right-hand side of the equation, 20 is a solution to the equation.

Determine Whether It Is True or False That the Given