Hey there! I'm happy to help!
First we use the distributive property to undo the parentheses.
7n+12n-9-2
We combine the terms with n.
19n-9-2
And we combine the constants.
19n-11.
Have a wonderful day! :D
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{19n - 11}}}}}[/tex]
Step-by-step explanation:
[tex] \sf{7n + 3(4n - 3) - 2}[/tex]
Distribute 3 through the parentheses
[tex] \longrightarrow{ \sf{7n + 12n - 9 - 2}}[/tex]
Collect like terms
[tex] \longrightarrow{ \sf{19n - 9 - 2}}[/tex]
The negative integers are always added but posses the negative ( - ) sign
[tex] \longrightarrow{ \sf{19n - 11}}[/tex]
Hope I helped!
Best regards! :D
