Evaluate the expression 4x + 7 − x + 3 when x = 5.
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Worked Solution
Step 1: Substitute x = 5 into the expression.
4x + 7 − x + 3 becomes 4(5) + 7 − 5 + 3
Step 2: Multiply first.
4(5) = 20
So: 20 + 7 − 5 + 3
Step 3: Add and subtract left to right.
20 + 7 = 27
27 − 5 = 22
22 + 3 = 25
Final answer: 25
Correct answer: 25
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