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1/4x + 0,3y=56
20 + 36 = 56
x=20*4=80
y=36*10/3=120
80+120=200
x + y = 200
0,25x + 0,3y = 56 | *(-4)
x + y = 200
-x - 1,2y = - 224
= -0,2y = -24 |*(-1)
0,2y = 24 | *5
y = 120
x + 120 = 200
x = 80
Te liczby to 120 i 80.
Mam nadzieję, że pomogłam. :):*