First you find the value of v, using the equation -5v - 2 = 3. You can't do anything with 4v - 3 yet because it doesn't have a value, an equal sign.
-5v - 2 = 3
Simplify by isolating the variable v in one side of the equation and the value in the other
Add 2 to both sides to shift -2 to the other side
-5v - 2 + 2 = 3 + 2
-5v = 5
Divide both aides by -5
-5v ÷ (- 5 ) = 5 ÷ (-5)
v = -1
Now you got the value of v
Plug v = -1 into 4v - 3
4×(-1) - 3
-4 - 3 = 7
4v - 3 = -7
Hope it helps :)