An equation is formed of two equal expressions. The correct option is C.
An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
The ordered pair that is a solution to the system of linear equations can be found as shown below,
6x + 5y = -7
Solving for y,
y = (-7-6x)/5
In the second equation substitute the value of y,
2x - 4y = -8
2x - 4[(-7-6x)/5] = -8
2x + (28/5) + (24x/5) = -8
10x + 28 + 24x = -40
34x = -68
x = -2
Since the only option in which the value of x is -2 is option C. It is the correct option.
Hence, the correct option is C.
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