angelica7773
04.01.2020 •
Mathematics
Multiplying by number is the same as?
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Ответ:
Below.
Step-by-step explanation:
Adding the number the same number of times as the multiplier.
For example
2 * 3 = 2 + 2 + 2.
Ответ:
7x - 21 + 12 - 3x = -8
7x - 3x = -8 + 21 - 12
4x = 1
x = 1/4