x+y=200
0,7x+y-30=146
0,7(200-y) +y-30=146
140-0, 7y+y-30=146
0,3y=36
y=120zł
x=200-120=80zł
x=80zł
klawiatura-120zł
myszka-80zł
tanie coś he he he
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x+y=200
0,7x+y-30=146
0,7(200-y) +y-30=146
140-0, 7y+y-30=146
0,3y=36
y=120zł
x=200-120=80zł
x=80zł
klawiatura-120zł
myszka-80zł
tanie coś he he he