Answer:
4
Step-by-step explanation:
First, substitute x for 3 and simplify
(9 + 8) - (6 + 7)
Simplify again
17 - 13
Simplifly once more
answer 4
method: if x=3
Sol (3(3)+8) - (2(3)+7) changed x=3
Then multiply =(9+8) - (6+7)
Add and subtract = 17-13
Then subtract and you will have your answer =4
Hope it helped
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