Answer:
y = 3
Explanation:
y - 3 = 2(x + 1)
If you simplify the right side of the equal sign, you'll get...
y - 3 = 2x + 2
then you would add 3 to both sides...
y - 3 (+3) = 2x + 2 (+3)
which will make...
y = 2x + 5
and since x = -1, you plug it in..
y = 2(-1) + 5
which will give you..
y = -2 + 5
which will make it..
y = 3