Asked by Mariana

I know the answer to (0.25x - 3) - (1.5x + 1.4) is 1.75x - 4.4 but I don’t understand how to get it, can you guys help me!
Answered by oobleck
collect like terms ... the x's and the constants
then use the distributive property.
(0.25x - 3) - (1.5x + 1.4)
0.25x - 3 - 1.5x - 1.4
since addition is commutative, that's the same as
0.25x - 1.5x - 3 - 1.4
now the distributive property kicks in:
(0.25-1.5)x - (3+1.4)
-1.25x - 4.4

I suspect you have a typo. You sure it was not (0.25x - 3) - (-1.5x + 1.4) ?
Answered by Bosnian
If your expression means:

- ( 0.25 x - 3 ) - ( 1.5 x - 1.4 )

then

- ( 0.25 x - 3 ) - ( 1.5 x - 1.4 ) =

- 0.25 x - ( - 3 ) - 1.5 x - ( - 1.4 ) =

- 0.25 x + 3 - 1.5 x + 1.4 =

- 1.75 x + 4.4
Answered by Mariana
Oh thx guys I get it now and it was a typo it was supposed to be (-0.25x - 3) - ( 1.5x + 1.4)
Answered by Mariana
Also the answer was -1.75x - 4.4 my teacher made an error
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