Answer:
x = 36
Explanation:
Note the equal sign, what you do to one side, you do to the other. Isolate the variable, x. Do the opposite of PEMDAS:
Remember to follow PEMDAS and the left -> right rule.
PEMDAS:
Parenthesis
Exponent (& roots)
Multiplication
Division
Addition
Subtraction
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15 = 1/3(x + 9)
First, multiply 3 to both sides of the equation
(15)(3) = (1/3(x + 9))(3)
(15)(3) = x + 9
45 = x + 9
Next, to isolate the x, subtract 9 from both sides
45 (-9) = x + 9 (-9)
45 - 9 = x
36 = x
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36 is your answer for x.
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