5x+(-4)-5x=6x+4-5x
-4=x+4
x=-8
To get rid of 5x on the left side.
The value of M equals 70°
658-216=442
There should be 442 yards of wrapping paper left on the roll.
Answer: The first graph.
This can be found by looking at the y-intercept and plugging in values for x.