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HELP ME OUT PLEASE SOLVE IT..............

Solved the system by substitution.if the system is inconsistent and has no solution,state this .if the system is dependent,write the form of the solution for any real number x.
x+y=50
0.25x+0.75y=0.60(50)
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1 Answer

Multiply the bottom equation by 4 and you get:
 
x + 3y = 120
 
Subtract this equation from the first equation up top & we get:
 
-2y = -70
 
  y = 35
 
  x = 50 - 35 = 15