Which equation has the solution x = 5? Select each correct answer. 18−2x=9 32−4x=12 11 + 6x = 22 25x+4=9 x5+5=6 3x + 1 = 9
2 answers:
Answer:
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Step-by-step explanation
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Answer:
32 - 4x = 12
Step-by-step explanation:
Substitute x = 5 into the equations and compare:
18 - 2x = 18 - (2 x 5) = 18 - 10 = 8 incorrect
32 - 4x = 32 - (4 x 5) = 32 - 20 = 12 correct
11 + 6x = 11 + (6 x 5) = 11 + 30 = 41 incorrect
25x + 4 = (25 x 5) + 4 = 125 + 4 = 129 incorrect
incorrect
3x + 1 = (3 x 5) + 1 = 15 + 1 = 16 incorrect
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Im not 100% sure but I think it’s X-8.8
The sum of the interior angles is 360
so, start floor = x
x + 7 - 9 - 4 + 8 - 2 = 14
x = 14
the elevator started on the 14th floor.
to verify: 14 + 7 = 21 - 9 = 12 - 4 = 8 + 8 = 16 - 2 = 14
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Hope this helped :)</span>