Verified answer

Answer:

[tex]12-2+5-7 \div 9[/tex]

• substract 2 from 12 to get 10

[tex]10+5-\frac{7}{9} [/tex]

• add 10 and 5 to get 15

[tex]15-\frac{7}{9} [/tex]

• convert 15 to fraction 135/9

[tex]\frac{135}{9}-\frac{7}{9} [/tex]

• Because 135/9 and 7/9 have the same denominator, substract them by substracting their numerators

[tex]\frac{135-7}{9} [/tex]

• substract 7 from 135 to get 128

[tex]\frac{128}{9} [/tex]

[tex]\frac{128}{9}\approx 14.2222[/tex]