28 is the coefficient of x and 35 is the constant
286. you just subtract the two numbers
The first one is the second one. t(n)=20n+480
Question 4: is the first one t(n)=8n+15
This can be solver by creating a small equation with x being the number and solving for x. The equation would be 8 + 2( x + 3 ) = -6
Solve for x:
8 + 2( x + 3 ) = -6
Distribute the 2
8+ (2x+6)=-6
Subtract 8
2x+6= -14
Add 6
2x= 8
Divide by 2
x=4
So the number you are looking for is 4
I hope this helps!
