Solve the Expression: Finding the Equivalent to 91 - 7

Which expression is equivalent to the given equation?

$91-7=$

To solve this problem, we need to find an expression that is equivalent to $91 - 7$. Let's work through it step by step.

First, let's compute $91 - 7$:

$91 - 7 = 84$

Next, we need to find which of the given choices results in $84$. The simplest way to do this is to break down the subtraction $91 - 7$ into two steps, reducing from $91$ in stages, and match these to the choices:

We can express $7$ as the sum of two smaller numbers, such as $1 + 6$. This breakdown results in:

$91 - 7 = 91 - (1 + 6)$

This can then be rewritten as two separate subtractions:

$91 - 1 - 6$

Now, compare this with the provided choices:

• Choice 1: $91 - 1 - 6$, which equals $84$.
• Choice 2: $91 - 3 - 2$, which equals $86$.
• Choice 3: $91 - 2 - 4$, which equals $85$.
• Choice 4: $91 - 1 - 5$, which equals $85$.

The expression $91 - 1 - 6$ is equivalent to $91 - 7$ because both evaluations result in $84$.

Therefore, the correct answer is $91 - 1 - 6$.