2. Section 3.2
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x= - 4
a(- b)=- a * b
Add and subtract terms
Simplifying the expression resulted in an identity. Therefore, x=- 4 is a correct solution.
x= 3
(- a)b = - ab
Add and subtract terms
Simplifying the expression resulted in a contradiction. Therefore, x=3 is not a correct solution.
x= 2
Multiply
Add and subtract terms
Simplifying the expression resulted in a contradiction. Therefore, x=2 is not a correct solution.
x= 3
Multiply
Subtract terms
Simplifying the expression resulted in an identity. Therefore, x=3 is a correct solution.