Question

PLSSS HELP IF YOU TURLY KNOW THISSS

Answer 1

15

Explanation:

10a - 2 + b + 5a + 9 ← collect like terms

= (10a + 5a) + b + (- 2 + 9)

= 15a + b + 7

Answer 2

`\huge\text{Hey there!}`

`\mathsf{10a - 2 + b + 5a + 9}`

`\large\text{COMBINE the LIKE TERMS}`

`\mathsf{= (10a + 5a) + (b) - (2+ 9)}`

`\mathsf{= 10a+ 5a + b - 2 + 9}`

`\mathsf{= 15a + b + 7}`

`\huge\text{Therefore, your answer should be:}`

`\huge\boxed{\mathsf{15a + b + 7}}\huge\checkmark`

~
`\frak{Amphitrite1040:)}`