Question

You use substitution to solve a system of equations and,

after simplifying, end with a statement that says 7 = 7.
Describe what this statement means about the number of
solutions and about the graph of the system.

Answer 1

Sample Response: Since the statement is true, there are an infinite number of solutions to the system. This statement also indicates that the lines are equivalent.

Answer 2

Answer: y - 2x = -7

Explanation:

7=7

System of equations are independent, if 2nd equation is not multiplication of firstequation by some number . ... Simplify the 2nd equation: ...c y - 2x = -7

... If you solve the equationsalgebraically and you get a solution such as 5=5, then ... If you use either method and end up with astatement that's always true i hope this helps