Make t the subject 2 (t-5) = y

t = (y + 10) / 2

Step-by-step explanation:

Make t the subject in

2 (t - 5) = y

Step 1

Expand the bracket by multiplying each term in the bracket by 2

2Xt - 2X5 = 2t - 10

2t - 10 = y

Step 2

To move 10 to the other side of the right hand side (RHS) of the equation, we add 10 to both sides of the equation.

2t - 10 + 10 = y + 10

2t = y + 10

Step 3

Make t the subject by dividing both sides of the equation by its coefficient, 2

2t/2 = (y + 10) / 2

t = y+10 / 2