Answer:
1. A, because 4(2)=8. 2 is the x.
2. B, because 2.5 x 4 = 10, which makes sense.
3. B, because 5x is the amount that you want to put into equal parts and the 3 is just being subtracted from the amount of the equal parts from the 5x.
4. C.
Step-by-step explanation:
X is equal to -4. Hope I helped. If you want an explanation too I would be glad to provide that .
Answer:
Step-by-step explanation:
Given
Equations are 
and 
take
Put the value of y in another equation
Put the value of x in y
Hence,
Answer:
1. x=3
2. x=2
3. 0 i think
4. y=6
5. x=7/5
Bonus: k=6
Step-by-step explanation:
combine like terms
