Problem :  Solve for x: 16 - x = 7x
x = 2
 
Problem :  Solve for x: 4x + 12 = 6(x - 1)
x = 9
 
Problem :  Solve for y: 5 + 2y = 8y
y =  
 
Problem :  Solve for t: 12 -  =
 =  
t = 9
 
Problem :  Solve for l: 3(l - 2) = 2l + 1
l = 7
 
Problem :  Solve for m: 17 + 3m = - (5 - m)
m = - 11