Choose 3 answers
Equivalent expression with negative numbers

2nd, 4th and 5th

Step-by-step explanation:

remember :

+- = -

-+ = -

-- = +

++ = +

so, the first option has all signs of all terms as +. that is wrong, as we have -1 1/5

also the third option turns all signs to +. and is therefore wrong.

the second option makes the signs +, + and -. that is correct (like the original expression). as +- = -

the fourth option is just removing the brackets, which did not change anything about the signs, as there was a + in front of the original brackets. so, it is still the correct +, + and -.

the fifth option has the first two terms with -- signs, which makes them both +.

and the third one is +-, so it is -.

so, we end up again with the correct +, + and - signs.

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^