Solve the System of Linear Equations by the Method of Elimination.Find

question 20

Multiple Choice

Solve the system of linear equations by the method of elimination.Find (x,y) and check your solution algebraically.​ $$\left\{ \begin{array} { l } 2 x + 7 y = \frac { 112 } { 9 } \\\\7 x + 8 y = \frac { 62 } { 9 }\end{array} \right.$$ ​

• A) \(\left( \frac { - 14 } { 9 } , \frac { 20 } { 9 } \right)\)
• B)​ \(\left( \frac { 20 } { 9 } , \frac { - 14 } { 9 } \right)\)
• C)​ \(\left( \frac { 20 } { 9 } , \frac { 14 } { 9 } \right)\)
• D)​ \(\left( \frac { 14 } { 9 } , \frac { 20 } { 9 } \right)\)
• E)​ \(\left( \frac { 14 } { 9 } , \frac { - 20 } { 9 } \right)\)

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Definitions:

Phonemically

Relating to phonemes, the smallest units of sound that can distinguish meaning in a language.

Semantically

Pertaining to the meanings or interpretations of words and sentences.

Structurally

Pertaining to the arrangement or organization of parts within a whole, often used in reference to physical, social, or abstract constructs.

Elaboration

The process of adding more detail to a message, making it more complex and often more persuasive.