Explanation:
Vanessa is trying to solve the equation for x.
The given equation is -3 + 4x = 9, or 4x - 3 = 9
She shouldn't be subtracting any number in the beginning. Instead, she should do the opposite of PEMDAS:
1) Vanessa should add 3 to both sides:
4x - 3 (+3) = 9 (+3)
4x = 9 + 3
4x = 12
2) Next, she should divide 4 from both sides:
(4x)/4 = (12)/4
x = 12/4
x = 3
Vanessa's answer will be x = 3.
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