Answer:
x = 25
(option B)
Step-by-step explanation:
Line AB must be a 180-degree angle
{why? : we know that "line" AB is a line, meaning it must be straight. If two angles [or more] make up a straight line, their individual angles must add up to 180 degrees. }
So, we can rewrite this as:
(2x + 2) + (5x + 3) = 180
2x + 2 + 5x + 3 = 180 [combine like terms]
7x + 5 = 180
- 5 - 5 [subtract 5 from both sides to isolate x]
7x = 175
÷7 ÷7 [divide by 7 to find "1" x]
x = 25
So, using our knowledge of straight-line angles, x = 25
(option B)
hope this helps!! :)
Answer:
x = 25
Step-by-step explanation:
2x + 2 + 5x + 3 = 180
7x + 5 = 180
7x = 175
/7 /7
x = 25
hope this is helpful :)
