Answer:
20
92
40
Explanation:
Remark
Every triangle has 180 degrees. The three angles add up to 180. You need only 1 equation to solve for x
Givens
Equation
48 + 6x - 28 + 2x = 180 combine the like terms on the left
48 - 28 + 6x + 2x = 180
20 + 8x = 180 Subtract 20 from both sides.
20-20 + 8x = 180 - 20 Combine
8x = 160 Divide both sides by 8
8x/8 = 160/8
x = 20
Answers
x = 20
B = 6x - 28 = 6*20 - 28 = 120 - 28 = 92
C = 2x = 2 * 20 = 40