It's C! Substitute f(x) for 8 to get 8=x/2+5 then subtract 5 from both sides to get 3=x/2 then multiply both sides by 2 to isolate x and you get 6=x!
Parallel lines have the same slope.
The slope of the red line is <u><em>-2</em></u>
The first one is incorrect
The equation 4x + 12 = -2x + 16 is one solution.
<h3>What is equation?</h3>
A statement of equality between two expressions consisting of variables and/or numbers.
Given:
4x + 12 = -2x + 16
Now solving for x
4x + 2x = 16 - 12
6x = 4
x= 4/6
x=2/3
Hence, the equation 4x + 12 = -2x + 16 has one solution.
Learn more about equation here:
brainly.com/question/16255566
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