Answer:
x = 0
Step-by-step 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.
First, add 7 to both sides:
9x - 7 (+7) = - 7 (+7)
9x = -7 + 7
9x = 0
Next, divide 9 from both sides:
(9x)/9 = (0)/9
x = 0/9 = 0
x = 0 is your answer.
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