HELP. does solving a system of equations by substitution give you the same solution as solving by elimination. explain your reasoning

There is not enough evidence to support the claim that midsized car get more than 30 miles per gallon

Step-by-step explanation:

The hypothesis ;

Null ; H0

H0 : μ1 - μ2 = 0

Alternative hypothesis, H1 ;

H1 : μ1 - μ2 ≠ 0

From the minitab output given ;

The Pvalue = 0.2486

α - value = 0.05

Decision region :

Reject H0 ; If Pvalue < α

otherwise, if Pvalue α > fail to reject H0 and conclude that there is not enough evidence to support the claim that midsized car get more than 30 miles per gallon