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Which expression is equivalent to (-1.3x-4.5) - (-2.1x+3.6)?

A. -3.4x - 8.1
B.-3.4x - 0.9
C. 0.8x - 8.1
D. 0.8x - 1.9

Pls help!!


Sagot :

Equivalent expressions are expressions with the same value.

The equivalent expression of [tex](-1.3x - 4.5)- (-2.1x + 3.6)[/tex] is [tex]0.8x -8.1[/tex]

Given that:

[tex](-1.3x - 4.5)- (-2.1x + 3.6)[/tex]

Open brackets

[tex](-1.3x - 4.5)- (-2.1x + 3.6) = -1.3x - 4.5+ 2.1x - 3.6[/tex]

Collect like terms

[tex](-1.3x - 4.5)- (-2.1x + 3.6) = -1.3x + 2.1x - 4.5 - 3.6[/tex]

[tex](-1.3x - 4.5)- (-2.1x + 3.6) = 0.8x -8.1[/tex]

Hence, the equivalent of [tex](-1.3x - 4.5)- (-2.1x + 3.6)[/tex] is [tex]0.8x -8.1[/tex]

Read more about equivalent expressions at:

https://brainly.com/question/18257981