13=2(t+17)+-1

Solution for 13=2(t+17)+-1 equation:

13=2(t+17)+-1

We move all terms to the left:

13-(2(t+17)+-1)=0

We use the square of the difference formula

-(2(t+17)-1)+13=0


We calculate terms in parentheses: -(2(t+17)-1), so:

2(t+17)-1

We multiply parentheses

2t+34-1

We add all the numbers together, and all the variables

2t+33

Back to the equation:

-(2t+33)


We get rid of parentheses

-2t-33+13=0

We add all the numbers together, and all the variables

-2t-20=0

We move all terms containing t to the left, all other terms to the right

-2t=20

t=20/-2

t=-10