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Mariulka [41]
4 years ago
9

3/10(x4+9)-7 for x=3

Mathematics
1 answer:
Marina86 [1]4 years ago
6 0
Answer:
-7/10
Explanation:
Substitute x with 3 first and you’d get 3/10(3(4)+9)-7. 3(4) is 12 plus 9 is 21. 3/10 multiplies by 21 is 6 3/10. 6 3/10 minus 7 is -7/10
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