Solve the following equations.
` x + 3 = 10 `

Answer

To solve the equation \( x + 3 = 10 \), follow these steps:

### Step 1: Write down the equation
We start with the equation:
\[ x + 3 = 10 \]

### Step 2: Isolate the variable \( x \)
To isolate \( x \), we need to get rid of the \( +3 \) on the left side. We can do this by subtracting \( 3 \) from both sides of the equation:
\[ x + 3 - 3 = 10 - 3 \]

### Step 3: Simplify both sides
Now, simplify both sides:
\[ x = 10 - 3 \]

### Step 4: Calculate the right side
Now, perform the subtraction on the right side:
\[ x = 7 \]

### Final Answer
Thus, the solution to the equation \( x + 3 = 10 \) is:
\[ x = 7 \]

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