Can anyone help me please​

What does x = in this equation x+3+2x=x+5

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price