Step-by-step explanation:
<em>Combine like terms</em>
a. 2r + 3 + 4r = (2r + 4r) + 3 = 6r + 3
b. 8 + 3d + d = (3d + d) + 8 = 4d + 8
c. mn + (-3mn) + 6 = (mn - 3mn) + 6 = -2mn + 6
d. 10s + (-10) + (-4s) = (10s - 4s) - 10 = 14s - 10
<em>Terms are called "like terms" if they have the same variable part (the same letters in the same powers). Like terms differ at most coefficient.</em>
Answer:
x = 30
since 3x = 90 degrees, then x = 90/3 = 30
Step-by-step explanation:
Answer:
it's 3
I am typing this to get over the 20 character limit
It would be 3,000 meters away considering there are exactly 1,000 meters in 1 kilometer so 1,000 × 3 =3,000
