Question

Explain how to determine if the two expressions are equivalent using x = 6 and x = 2.

2x + 4 – 1



3 + x + x

Answer 1

Yes the expressions are equivalent

Step-by-step explanation:

expression 1 : 2x + 4 - 1

when x = 6

= 2(6) +3 = 12+3

= 15 ---------1

when x = 2

=2(2) +3 = 4+3

= 7 ----------2

expression 2: 3+x+x

when x = 6

= 3 + 6 + 6

= 15 ----------3

when x = 2

= 3+2+2

= 7------------4

hence as 1 - 3 and 2-4 are equal. we can conclude that the expressions are equivalent.