The sum of x and 9 is divided by 2 that quantity is equal to 3x

The sum of x and 9 divided by 2 is equal to 3x

(x + 9)/2 = 3x

Note the equal sign, what you do to one side, you do to the other. First, multiply 2 to both sides

(x + 9)/2(2) = 3x(2)

x + 9 = 6x

Subtract x from both sides

x (-x) + 9 = 6x(-x)

9 = 5x

Isolate the x. Divide 5 from both sides

9/5 = 5x/5

x = 9/5

9/5 is your answer for x

hope this helps

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