Which expression is equivalent to -7-(-2.5)? Choose 1 answer: (A) 2.5+7 (B) -7+2.5 (c) 7+(-2.5) (D) -2.5-7

Understand subtraction of negative numbers: Understand the operation of subtracting a negative number. Subtracting a negative number is the same as adding its positive counterpart. So, -7 - (-2.5) is the same as -7 + 2.5.Perform addition: Perform the addition. Now we add -7 and 2.5 together. -7 + 2.5 = -4.5Match result with choices: Match the result with the given choices. The result of the calculation is -4.5, which is the same as subtracting 7 from 2.5. So, the equivalent expression is -7 + 2.5.Identify correct choice: Identify the correct choice. The correct choice that represents -7 + 2.5 is: (B) -7 + 2.5

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Math Problems

Grade 7

Identify equivalent linear expressions I

Full solution

Q. Which expression is equivalent to

-7-(-2.5) ?

\newline

Choose

1

answer:

\newline

(A)

2.5+7

\newline

(B)

-7+2.5

\newline

(C)

7+(-2.5)

\newline

(D)

-2.5-7

Understand subtraction of negative numbers: Understand the operation of subtracting a negative number. Subtracting a negative number is the same as adding its positive counterpart. So, $-7 - (-2.5)$ is the same as $-7 + 2.5$ .
Perform addition: Perform the addition. $\newline$ Now we add $-7$ and $2.5$ together. $\newline$ $-7 + 2.5 = -4.5$
Match result with choices: Match the result with the given choices. $\newline$ The result of the calculation is $-4.5$ , which is the same as subtracting $7$ from $2.5$ . $\newline$ So, the equivalent expression is $-7 + 2.5$ .
Identify correct choice: Identify the correct choice. $\newline$ The correct choice that represents $-7 + 2.5$ is: $\newline$ (B) $-7 + 2.5$