Solve for x. begin equation . . . 7 times the quantity . . . 9 plus x . . . equals 84 . . . end equation A x equals 3 B x equals 12 C x equals 21 D x equals 68

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asked May 13, 2019 51.8k views

1 vote

Solve for x.

begin equation . . . 7 times the quantity . . . 9 plus x . . . equals 84 . . . end equation

A
x equals 3

B
x equals 12

C
x equals 21

D
x equals 68

Mathematics
high-school

Nicolas Buduroi asked

by Nicolas Buduroi

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1 Answer

5 votes

$7 * 9 + x = 84 \\ 63 + x = 84 \\ x = 21$

Answer is C.

Hope this helps. - M

Marc Rohloff answered May 19, 2019

by Marc Rohloff

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