MathematicsWhich of the following is the expression for “3 added to the sum of 9 and x”

Which of the following is the expression for “3 added to the sum of 9 and x”

A
$3 x + 9$
B
$9 x + 3$
C
$(x + 9) + 3$
D
$3 x + (3.9)$

Solution:

(x + 9) + 3

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