Solve Each System by Using Either the Substitution or the Elimination-By-Addition

question 222

Multiple Choice

Solve each system by using either the substitution or the elimination-by-addition method, whichever seems more appropriate. $$\left( \begin{array} { c } 8 x - 8 y = 40 \\- 8 x + 3 y = - 15\end{array} \right)$$

• A) ( 0, \(-\) 5)
• B) ( 5, 0)
• C) ( 0, 5)
• D) infinitely many solutions
• E) no solutions

---

Definitions:

Secondary Reinforcer

A stimulus that gains its reinforcing power through its association with a primary reinforcer.

Applause

The act of clapping hands together to show appreciation or approval, typically in response to a performance or speech.

Criticism

The evaluation of merits and faults of the work or actions of an individual or group.

Counterconditioning

A behavior therapy technique where an unwanted behavior or response is replaced with a more desirable one by associating the behavior with a positive action or feeling.