Simplify the following expression. 7(7y + 3z) - 21z A. 14y B. 49y C. 14y - 42z D. 49y - 24z

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Rob Buckley · Answer 1 · 2021-12-13T10:26:03+0000

Answer:

B

Explanation:

Distribute 7 through the parentheses, 49y +21z - 21z

Eliminate the opposites, 21z-21z = 0, left over 49y

Final answer, 49y