Which expression has the same value as 1-2 ? -2+1 -2+(-1) -1+(-2) 1-(-2)

Find Equivalent Expression: We need to find the expression that is equivalent to 1-2. Calculate 1-2. 1 - 2 = -1Calculate 1-2: Compare the result with the first option: -2+1. Calculate -2 + 1. -2 + 1 = -1 Check if it matches the result from the first step. -1 = -1, so this expression is equivalent.Compare with -2+1: Compare the result with the second option: -2+(-1). Calculate -2 + (-1). -2 + (-1) = -3 Check if it matches the result from the first step. -3 ≠ -1, so this expression is not equivalent.Calculate -2+1: Compare the result with the third option: -1+(-2). Calculate -1 + (-2). -1 + (-2) = -3 Check if it matches the result from the first step. -3 ≠ -1, so this expression is not equivalent.Check for Equivalence: Compare the result with the fourth option: 1-(-2). Calculate 1 - (-2). 1 - (-2) = 1 + 2 = 3 Check if it matches the result from the first step. 3 ≠ -1, so this expression is not equivalent.

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Which expression has the same value as
1-2 ?

-2+1

-2+(-1)

-1+(-2)

1-(-2)

Which expression has the same value as $1-2$ ? $\newline$ $-2+1$ $\newline$ $-2+(-1)$ $\newline$ $-1+(-2)$ $\newline$ $1-(-2)$

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Math Problems

Algebra 1

Evaluate integers raised to rational exponents

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Q. Which expression has the same value as

1-2

\newline

-2+1

\newline

-2+(-1)

\newline

-1+(-2)

\newline

1-(-2)

Find Equivalent Expression: We need to find the expression that is equivalent to $1-2$ . Calculate $1-2$ . $1 - 2 = -1$
Calculate $1-2$ : Compare the result with the first option: $-2+1$ . $\newline$ Calculate $-2 + 1$ . $\newline$ $-2 + 1 = -1$ $\newline$ Check if it matches the result from the first step. $\newline$ $-1 = -1$ , so this expression is equivalent.
Compare with $-2+1$ : Compare the result with the second option: $-2+(-1)$ . $\newline$ Calculate $-2 + (-1)$ . $\newline$ $-2 + (-1) = -3$ $\newline$ Check if it matches the result from the first step. $\newline$ $-3 \neq -1$ , so this expression is not equivalent.
Calculate $-2+1$ : Compare the result with the third option: $-1+(-2)$ . $\newline$ Calculate $-1 + (-2)$ . $\newline$ $-1 + (-2) = -3$ $\newline$ Check if it matches the result from the first step. $\newline$ $-3 \neq -1$ , so this expression is not equivalent.
Check for Equivalence: Compare the result with the fourth option: $1-(-2)$ . $\newline$ Calculate $1 - (-2)$ . $\newline$ $1 - (-2) = 1 + 2 = 3$ $\newline$ Check if it matches the result from the first step. $\newline$ $3 \neq -1$ , so this expression is not equivalent.