Question

Which expressions are equivalent when m=1 and m=4? (picture attached)

Answer 1

Answer:

Option 2 is correct.

Step-by-step explanation:

Given the expressions

$\text{5m-3 and 2m+5+m}$

$\text{3m+4 and m+4+2m}$

$\text{2m+7 and 3m-3+m}$

$\text{5m+3 and 4m+2+2m}$    

we have to choose the option for which the expressions are equivalent when m=1 and m=4.

The substitution of values shown in table in attachment.

The only option 2 which gives the same values for m=1 and m=4 in both the expressions.

∴ Option 2 is correct.

Answer 2

The second one is the only equivalent equation. Simply plug in each variable in each equation. And compare!