Answer:
4p - 6t
Step-by-step explanation:
7p + 9t - 3p - 15t
= 7p - 3p + 9t - 15t
= 4p + (-6t)
= 4p - 6t
For this case we have the following expression:
[tex]7p+9t-3p-15t[/tex]
We must group similar terms:
[tex]7p-3p + 9t-15t[/tex]
We add similar terms taking into account that:
[tex]4p-6t\\\\[/tex]
Answer:
[tex]4p-6t\\\\[/tex]