3x+21 is a simplified version of this algebraic expression
Answer:
8
Step-by-step explanation:
Well 2x=16 is the same as x=8 when you divide by 2. So the dot should be on 8.
Y=4
the answer is y=4 because you had to subtract 8 from both sides.
Answer: -0.6
Step-by-step explanation:
Common difference is obtained by taking difference of two consecutive.
-5.2-(-4.6)
= -5.2+4.6
= -0.6