PIA101
Answered

Which expression is not equivalent to

5x + 6?

A

4x + 7 + x - 1

B

3x + 3 + 2x + 3

C

5(x + 1) + 1

D

x(5 + 6)

Verified Answer :

5x + 6

4x + 7 + x - 1  < Lets see if this one works
4x + 1 = 5x
5x + 6  << Equal

3x + 2x = 5x
5x + 6  << Equal

5(x + 1 ) + 1
5x + 5 + 1
5x + 6  << Equal 

x(5+6)
5x + 6x  << Not equal 

Answer: D)     x(5 + 6)   This one is not equal. 

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