You had to used their order of operations stands for: p-parenthesis, e-exponents, m-multiply, d-divide, a-add, and s-subtracting.
For example: ⇒ (9+9)÷2*6+10
1. First you calculate with parenthesis first.
And it gave us ⇒ [tex]18/2*6+10[/tex]
2. Then you multiply and divide from left to right.
And it gave us ⇒ [tex]54+10[/tex]
3. Finally you add and subtract from left to right.
And it gave us ⇒ [tex]=64[/tex]
[tex]\boxed{=64}[/tex]
Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie