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Two expressions are equivalent if they are _ for all possible values of the variables.
What is an equivalent expression for -2.5 + 7.1x?
1. Use proberties of _ to rewrite the expression.
- Use the commutative property.
-2.5 + 7.1x
7.1x + (_)
7.1x - 2.5

1 answer

Two expressions are equivalent if they are equal for all possible values of the variables.

An equivalent expression for \(-2.5 + 7.1x\) can be obtained using the properties of addition to rewrite the expression.

Using the commutative property:

  • Start with \(-2.5 + 7.1x\)
  • Rearranging gives \(7.1x + (-2.5)\)
  • This can be expressed as \(7.1x - 2.5\)

So the completed statements are: Two expressions are equivalent if they are equal for all possible values of the variables. What is an equivalent expression for (-2.5 + 7.1x?

  1. Use properties of addition to rewrite the expression.
  • Use the commutative property. -2.5 + 7.1x 7.1x + (-2.5) 7.1x - 2.5