Answer:
x = 3
Explanation:
Isolate the variable, x. Note the equal sign, what you do to one side you do to the other. Do the opposite of PEMDAS.
First, subtract 7 from both sides:
3x + 7 (-7) = 16 (-7)
3x = 16 - 7
3x = 9
Isolate the variable x. Divide 3 from both sides:
(3x)/3 = (9)/3
x = 9/3
x = 3
x = 3 is your answer.
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