Compute each of the following:
`70+(-20)+(-30)`

Options

A. 20
B. -20
C. 22
D. -22

Answer

To compute the expression \( 70 + (-20) + (-30) \), we can follow these steps:

### Step 1: Write the expression
We start with the expression:
\[ 70 + (-20) + (-30) \]

### Step 2: Simplify the expression
We can rewrite the expression by recognizing that adding a negative number is the same as subtracting that number:
\[ 70 - 20 - 30 \]

### Step 3: Perform the first subtraction
Now, we subtract \( 20 \) from \( 70 \):
\[ 70 - 20 = 50 \]

### Step 4: Perform the second subtraction
Next, we subtract \( 30 \) from \( 50 \):
\[ 50 - 30 = 20 \]

### Final Answer
Thus, the final result of the expression \( 70 + (-20) + (-30) \) is:
\[ \boxed{20} \]

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