The equation would be
y = x + 3
Answer:
60, 72, arithmetic
Step-by-step explanation:
48 + 12 = 60
60 + 12 = 72
An 'Arthimetic sequence' is what is presented in this question.
First you create a proportion (30/100=x/120). After you solve this, next you subtract this answer from 120. Then create a proportion for 40% (40/100=x/120). Then add this number to the first answer you got when you subtracted the answer from your first proportion from 120.
The answer is x = -19
Solution:
9(x + 1) = -162
Expand:
9x + 9 = -162
9x = -162 - 9
9x = -171
x = -171/9
x = -19