Question

determine which expressions are equivalent to $0.87 - 4.5 - 5.8 + (-7.8)$. (choose 2.)
a $0.87 - 4.5 + (-5.8) + 7.8$
b $0.87 + 4.5 - 5.8 + 7.8$
c $0.87 - 4.5 - 5.8 + 7.8$
d $0.87 + 4.5 + 5.8 - 7.8$
e $0.87 - 4.5 + 5.8 - 7.8$

Explanation:

Step1: Simplify inner brackets

$0.87 - 4.5 - [5.8 + (-7.8)] = 0.87 - 4.5 - (5.8 - 7.8)$

Step2: Distribute the negative sign

$0.87 - 4.5 - 5.8 + 7.8$

Step3: Rewrite subtraction as adding negative

$0.87 - 4.5 + (-5.8) + 7.8$

Answer:

A. $0.87 - 4.5 + (-5.8) + 7.8$
C. $0.87 - 4.5 - 5.8 + 7.8$