Renan found the sum (4.2x +3) + (5.7x -2) + (5 - 2.6x). what was renan's error in adding the expressions?

he used commutative property incorrectly

Step-by-step explanation:

i worked this out on my own to find out that he used commutative property incorrectly  and then on edgen.. this answer was correct <3

he used commutative property incorrectly

Step-by-step explanation:

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

step-by-step explanation: s