Math lab question

dx+fy=k solve for x

[bym]

is dx a variable or does it mean d*x? what is fy. You have to provide more information to get a better answer than:

x= (k-fy)/d

[Walter Roberson]

Is this linear algebra or is it a differential equation ?

Answer 1

[Walter Roberson]

You will need the Symbolic Toolkit.

solve('d*x+f*y=k','x')

Answer 2

[Subarna Parajuli]

3X+2Y=24

X+Y=12

[Walter Roberson]

eqn = [str2sym('3*X+2*Y==24') 
       str2sym('X+Y==12')]

eqn = 

solve(eqn)

ans = struct with fields:
    X: 0
    Y: 12