Which expression is equivalent to 4+x+x+2x+5+3+x?

Combining like terms, we have

Next, add them

Therefore, ''" is equivalent to "."

B. 5x + 12.

Step-by-step explanation:

Whenever you see variables without a visible coefficient, imagine there is a '1' in front of the variable.

From here, you can combine like terms.

Remember, combine means to add.

Like terms are terms whose variables (such as x or y) with any exponents are the same (such as x² or y²).

I, therefore believe 5x + 12 is equal to 4 + x + x + 2x + 5 + 3 + x.

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

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation: