Question

what is 2(9n-1)+7(9n+6)=35

Answer 1

2(9n-1)+7(9n+6)=35<----- Using the distribution property...
18n - 2 + 63n + 42 = 35<----- Commutative property now...
81n + 40 = 35
- 40 - 40
----------------
81n = -5
/81 /81
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n = -5/81

Answer 2

First expand the brackets

Answer 3

Distribute the 2 and the 7 through the parenthesis and then rearrange the equation such that you have the numbers that have n attached to them on one side of the equality sign and the rest on the other side.
Simplify that first and then isolate n to find the answer

Answer 4

And group like terms