Rearrange the like terms first.
1. 4x+3x+9=30
add the like terms
2. 7x+9=30
move the 9 to the other side.
3. 7x=30-9
subtract them
4. 7x=21
divide bothers sides by 7
5.

which it will end with the result of
x=3
A) -4
d) -3.1
for these questions you have to subtract the two numbers since they have different signs and the biggest sign is the ending sign
Answer:
24 per bag
Step-by-step explanation:
18x8=144 then divide by 6= 144÷6=24
False! The number 3 is also missing :) 3x14 = 42