Let's go through each step to solve the problem \( 1.4 ( x + 3 ) = 5 \).
Step 1: (Multiply) \( 1.4 ( x + 3 ) = 5 \) (This is just rewriting the equation.)
Step 2: \( x + 3 = \frac{5}{1.4} \)
Step 3: Subtract 3 from both sides
Step 4: \( x = \frac{5}{1.4} - 3 \)
Now let's proceed to simplify and calculate the final value for \( x \):
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Calculate \( \frac{5}{1.4} \): \[ \frac{5}{1.4} = \frac{5 \times 10}{1.4 \times 10} = \frac{50}{14} \approx 3.5714 \]
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Subtract 3: \[ x = 3.5714 - 3 = 0.5714 \]
So the final answer is: \[ x \approx 0.5714 \]