Question

Solve: |2t + 5| = 3

Answer 1

-1?

Answer 2

2t + 5 =3
2t = 3-5
t= -2/2
t =-1

2t+5 =-3
2t = -8
t=-4

Answer 3

How did you get -3 in the second equation?

Answer 4

When you're solving an equation with an absolute value, you have to split it up.
|ax+b|=c
ax+b =c and ax+b =-c