Help this is timed Its Math dont answer if u dont know

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

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax

The graph of y x3 is translated so that the point (1. 1) is moved to (1, 4). what is the equation of the new graph?