Answer:
4
Step-by-step explanation:
Step 1: Write out expression
(3x + 8) - (2x + 7)
Step 2: Distribute negative
3x + 8 - 2x - 7
Step 3: Combine like terms
x + 1
Step 4: Substitute
3 + 1 = 4
Evaluate (3x + 8) – (2x + 7) when x = 3. =4
