Answer:

Step-by-step explanation:
add 4 on both sides
leaves you with 15 on the right side
you then divide by negative 2
since you divide by a negative you have to switch the sign
Answer:
-1/7 y + 1/7 x
Step-by-step explanation:
Can also be written as
1/7 x - 1/7 y
Answer:
b = -8
Step-by-step explanation:
-2b + 9 =25
-9 = -9
-2b = 16
/-2 /-2
b = -8
Answer:
sorry in dont know the ans
Answer: The smaller number is 12
Step-by-step explanation: