Answer:
x<6
Step-by-step explanation:
x+1 < 7
Subtract 1 from each side
x+1-1<7-1
x <6
You could use change of base formula
Answer:
(1,5) (7,13) (10,17) (7,13)
Step-by-step explanation:
1 4 7 10 13
5 9 13 17 21
a = 2x + 6xz
a = x(2 + 6z) <em>factored out "x" on right side</em>
a/(2 + 6z) = x <em>divided both sides by (2 + 6z)</em>
Answer: x = 