3 years ago

4b + 21 = −3(b − 7) + 7b

1 answer:

6 0

4b+21=-3b+21+7b
4b+21=4b+21
it means that the expression shows an identity

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const2013 [10]

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3 years ago

olganol [36]

Answer:

$x^{\frac{2}{3} }$

Step-by-step explanation:

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enot [183]

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choli [55]

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4 years ago

LenaWriter [7]

Answer:

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Step-by-step explanation:

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3 years ago