20.Evaluate 10x + 17 if ex = 2
21. find the sum of (9x + 13) and (x — 4)
22. simplify (17x + 8) — (4x — 2)
21. find the sum of (9x + 13) and (x — 4)
22. simplify (17x + 8) — (4x — 2)
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Answer:
20. 10x+17
10(2)+17
20+17=37
21. (9x+13) (x-4)= -9x²+49x-52
23. (17x+8) - (4x-2)=13x+10
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