Write an expression that is equivalent to −30+(−40)+(−70) using the commutative property of addition.

hint: your answer should be in this form: x + y + z not just one number

The desired expression is  −30+  (−70)  + (−40)  or  −70  + (−40) + (−30)

Step-by-step explanation:

Here, the given expression is  −30+(−40)+(−70)

Let us assume here, X = (-30)

Y = (-40)  and Z  = (-70)

So, the given expressions is of the form X + Y + Z

Commutative Property states that for any number A, B and C:

A+ (B+C)  = (A+B) + C

So, here ( X+Y) + Z = X+ (Y +Z)

⇒The given expression can also be written as

−30+  (−70)  + (−40), or,  −70  + (−40) + (−30)

Hence, the desired expression is  −30+  (−70)  + (−40), or,  −70  + (−40) + (−30)

just needed some points but try socratic