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Zepler [3.9K]
3 years ago
10

Given: 2x + 30 = -4(5x -2); Prove: x = -1

Mathematics
1 answer:
Lady_Fox [76]3 years ago
6 0
2x + 30 = -20x + 8
2x + 20x = 8 - 30
22x = -22
x = 1
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SVEN [57.7K]

hello :)

so let me just give you the answer first:

2/3 * d = 32 2/3

here is why

so since the sentence said 2/3 PER day, then d (the number of days) multiplied by the time spent each day playing piano should give you how much time was spent in total over the certian number of days.

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