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

Respuesta :


[tex]7 \times 9 + x = 84 \\ 63 + x = 84 \\ x = 21[/tex]

Answer is C.

Hope this helps. - M