- 4 - 3v = -52 ------------------------------(1)
-r - 3v = -52 ----------------------------------(2)
From equation (1), solve for v
-4 - 3v = -52
add 4 to both-side of the equation
-3v = -52 + 4
-3v =-48
divide both-side of the equation by -3
v = 16
Substitute v= 16 in equation(2) and then solve for r
-r - 3v = -52
-r - 3(16) = -52
-r -48 = -52
add 48 to both-side of the equation
-r = -52 + 48
-r = -4
multiply both-side of the equation by -1
r=4