latiamason16
18.10.2020 •
Mathematics
Below is a series of steps Mel took to solve an equation. She got the wrong answer. Find Mel's mistake. Then, use order of operations and solve for x.
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Ответ:
x = 9
Mel's mistake was in the last step, she multiplied by 2 instead of dividing by 2
Step-by-step explanation:
2x + 1 = 19
Subtract 1 from each side
2x = 18
Divide by 2
x = 9
Ответ:
2x - 1 > 0 ( x = 1)
x + (x − 1) > 5 ( x = 3)
5x − 3x > 9 ( x = 5)