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AssignmentMultiple Select

Solving Linear Systems by Substitution

Question 3 • OK-Algebra II A

Given the equation y = x – 2, you substitute 5 for x. Check all true statements below.

Answer
A
x is temporarily replaced with 5.
B
The equation becomes y = 5 – 2.
C
y is 3.
D
The equation y = x – 2 is no longer true.
E
The equation y = x – 2 is still true, just with specific values.

Explanation

Substituting 5 for x means temporarily replacing x with 5, so the equation becomes y = 5 − 2. This gives y = 3. The original equation y = x − 2 is still true for these specific values, x = 5 and y = 3; it has not stopped being true.

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