Answer:
= 0
Step-by-step explanation:
a² + 3b - 2a² = 3a² + 3b - 4a²
= a² - 2a² - 3a² + 4a² + 3b - 3b
= 0
Answer:
2
Step-by-step explanation:
Let the number be
. Writing an equation in terms of the number,
, gives
.
Adding
to both sides gives
.
Then, subtracting
from both sides gives
,
and dividing by 8 on both sides simplifies to
.
Answer: Multiply by 3 in everyone
Step-by-step explanation: 4 times 3 is 12 5 times 3 is 15 6 times 3 is 18 and 7 times 3 is 21
Answer:
11 degrees, i think?
Step-by-step explanation: