Question

Angle one and two add up to 100, if angle one is 2x and angle two is 3x, what is x?

Answer 1

Answer:

$angle \: 1 = 2x \\ angle 2 = 3x \\ sum = 1 00 \\ 2x + 3x = 100 \\ 5x = 100 \\ divide \: both \: side \: by \: 5 \\ \frac{5x}{5} = \frac{100}{5} \\ x = 20$