Answer:
x = 45
Step-by-step explanation:
The 3 angles of a triangle add up to 180
<a + <b + <c = 180
substitute what you know
55+ 80 + <c = 180
combine like terms
135 + <c = 180
subtract 135 from each side
<c = 180 -135
<c = 45
x = 45
Answer:
a
Step-by-step explanation:
Answer:
multiply two by ten to get twenty
Step-by-step explanation:
20/2=10
Answer:
x = Ø
Step-by-step explanation:
7x - 12 - 3x = 2(2x + 5)
4x - 12 = 4x + 10
4x = 4x + 22
0x = 22
x = Ø
Hope this helps dude
