Hello! i'm in seventh grade and i just started algebra and i do not know what "simplifying the expression" means. could someone explain it? in advance.

To diminish a portion to its most minimal terms by dropping to the least regular factor for both numerator and denominator or to gather a mathematical articulation by gathering and joining comparative terms. Working on makes an algebric articulation effectively reasonable and resolvable.

Step-by-step explanation:

To simplify any algebraic expression, the following are the basic rules and steps:

1. Remove any grouping symbol such as brackets and parentheses by multiplying factors.

2. Use the exponent rule to remove grouping if the terms are containing exponents.

3. Combine the like terms by addition or subtraction.

4. Combine the constants.

water molecules will move from the side of higher water concentration to the side of lower concentration until both solutions are isotonic. at this point, equilibrium is reached. in an isotonic solution, the flow of water in and out of the cell is happening at the same rate.

hope this < 3

#15. square

step-by-step explanation:

because quadrilatural (idk how to spell it) means somthing that is not 3d or like, equal sides (or somthing like that   you know what i meanz)

hope this halps!

bai!