schoolelite2019 schoolelite2019

22-04-2021
Mathematics

contestada

what expressions are equivalent to 12x-42 (choose all that apply)

6(2x-7)
3(4x-39)
2(6x-21)
-2(-6x-40)

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tsukithetrash tsukithetrash

22-04-2021

6(2x-7) and 2(6x-21)
Both equals to 12x-42
6*2x=12x & 6*(-7)=-42 –> 12x-42
2*6x=12x & 2*(-21)=-42 —> 12x-42

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