Question

Can somebody explain this to me, step by step?
x + y = 78
4x + 3y= 267

Answer 1

Answer:

x + y=78

4x +3y=267

4x + 4y= 312

4x + 3y= 267

(-) (-) (-)

y. = 45

puting value of y

x+45=78

x=78-45

x=33

x=33,y=45