Maricella solves for x in the equation . She begins by adding –4 + 4 on the left side of the equation and 1 + 1 on the right side of the equation. Which best explains why Maricella’s strategy is incorrect?
Answer
A
The multiplication that takes place while distributing comes before addition and subtraction in order of operations.
B
In order to combine like terms on one side of the equation, the inverse operation must be used.
C
When the problem is worked in the correct order, the numbers that Maricella added are not actually like terms.
D
Maricella did not combine all three constants on both sides of the equation; she combined only two.