The common denominator is 18
Answer:
-7
Step-by-step explanation:
We need to find the common difference
Take the second term and subtract the first term
5-8 = -3
Check the third term and subtract the second term
2-5 = -3
The common difference is -3
To find the next term, take the last term and subtract 3
-4-3 = -7
Answer:
38.9
Step-by-step explanation:
Lets say, first number = x
Second number = 3x+7
Total = 49
(x)+(3x+7)= 49
4x+7 = 49
4x = 42
x = 42/4
x= 10.5
x= 10.5
3x+7 = 3(10.5)+7 = 38.9
Hope this helps!!
2a + 21 = 8a - 9
Combine like terms.
2a + 21 = 8a - 9
-2a -2a
21 = 6a - 9
+9 +9
30 = 6a
6a/6 = 30/6
a = 5
Answer: a = 5
Answer:
(1,-1)
Step-by-step explanation: