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What is the solution to the system of equations?

[tex]\[
\begin{array}{l}
2x - y = 7 \\
y = 2x + 3
\end{array}
\][/tex]

A. [tex]\((2, 3)\)[/tex]
B. [tex]\((2, 7)\)[/tex]
C. No solution
D. Infinite number of solutions


Sagot :

To solve [tex]\(2x - y = 7\)[/tex] and [tex]\(y = 2x + 3\)[/tex], we can proceed step by step.

1. Substitute [tex]\(y\)[/tex] from the second equation into the first equation:
[tex]\[ 2x - (2x + 3) = 7 \][/tex]
Simplify this expression:
[tex]\[ 2x - 2x - 3 = 7 \][/tex]
Combine like terms:
[tex]\[ -3 = 7 \][/tex]

2. The simplified equation [tex]\(-3 = 7\)[/tex] is a contradiction, meaning that it is not true for any values of [tex]\(x\)[/tex].

Since substituting [tex]\(y = 2x + 3\)[/tex] into [tex]\(2x - y = 7\)[/tex] results in a contradiction, we can conclude that there is no solution to the system of equations.

Therefore, the correct answer is:
[tex]\[ \boxed{\text{no solution}} \][/tex]