Answer:
I believe your answer is D
sorry if im wrong
Step-by-step explanation:
Answer
Elena must have substracted 1/2x from both sides of the equation.
Lin must have multiplied both sides of the equation by 2
Explanation
The equation given is

For Elena to have arrived at

Then Elena must have substracted 1/2x from both sides of the equation.
That is;

For Lin to have arrived at

It shows Lin must have multiplied both sides of the equation by 2
That is;
Answer:
2m + 153.5
Step-by-step explanation:
Hey there
2m = The word times means multiplication. So, multiply 2 and m.
153.5 = The phrase more than means addition. So, add 2m and 153.5.
hope it helped