Question

Are all expressions shown below equivalent? 8.1 + 12 4(2x + 3) 6x + 12 + 2x 8(x + 1) + 4

Answer 1

OK

First simplify all expression

1. 8x + 12 = 8x + 12

2. 4(2x + 3 ) = 8x + 12

3. 6x + 12 + 2x = 6x + 2x + 12 = 8x + 12

4. 8(x + 1) + 4 = 8x + 8 + 4 = 8x + 12

we can see that all expressions are equal, hence all are equivalent.