`493 + 287 - 334 = - 54 + ? xx 5`

Options

A. 90
B. 100
C. 110
D. 95

Answer

To solve the equation \( 493 + 287 - 334 = -54 + ? \times 5 \), we will follow these steps:

### Step 1: Simplify the left side of the equation
First, we calculate \( 493 + 287 - 334 \).

1. **Add 493 and 287**:
\[ 493 + 287 = 780 \]

2. **Subtract 334 from 780**:
\[ 780 - 334 = 446 \]

So, the left side simplifies to \( 446 \).

### Step 2: Set up the equation
Now we can rewrite the equation with the simplified left side:
\[ 446 = -54 + ? \times 5 \]

### Step 3: Isolate the term with the question mark
To isolate \( ? \times 5 \), we need to add \( 54 \) to both sides of the equation:
\[ 446 + 54 = ? \times 5 \]

Calculating the left side:
\[ 446 + 54 = 500 \]

So, we have:
\[ 500 = ? \times 5 \]

### Step 4: Solve for the question mark
Now, we divide both sides by \( 5 \) to find \( ? \):
\[ ? = \frac{500}{5} \]

Calculating the division:
\[ ? = 100 \]

### Final Answer
The value of \( ? \) is \( 100 \).

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