Question

x+y=1212
x-y=518
please help me with it

Answer 1

Here,

• x+y=1212••••••$\bold{equation~I  }$ 
• x-y=518••••••$\bold{equation~II   }$ 

ADDITIONALL,both two equation.

we get that,

• x+y+x-y=1212+518
• 2x=1730
• x=865

so,

• x-y=518
• 865-y=518
• y=860-518
• y=347