Given:
The leading coefficient of the first equation is 70.
The leading coefficient of the second equation is 50.
The leading coefficient of the third equation is 65.
Required:
We need to divide each row by the leading coefficient.
Explanation:
Divide the first row of the augmented matrix by 70.
[tex]\frac{1}{70}R_1\rightarrow R_1[/tex]Divide the second row of the augmented matrix by 50.
[tex]\frac{1}{50}R_2\rightarrow R_2[/tex]Divide the third row of the augmented matrix by 65.
[tex]\frac{1}{65}R_3\rightarrow R_3[/tex]Final answer:
[tex]\frac{1}{70}R_1\rightarrow R_1[/tex][tex]\frac{1}{50}R_2\rightarrow R_2[/tex][tex]\frac{1}{65}R_3\rightarrow R_{3-}[/tex]