6270+3230=9500, если х=95
39798+20502=60300, если х=603
5 9/35 - 2 22/35 - 1 12/35 + 10 26/35 = (5 - 2 - 1 + 10) + (9/35 - 22/35 - 12/35 + 26/35) = 12 + (9/35 + 26/35 - 22/35 - 12/35) = 12 + (35/35 - 34/35) = 12 + 1/35 = 12 1/35
70+x=24*4
70+x=96
x=96-70
x=26
y-120=280:7
y-120=40
y=40+120
<span>y=160
</span>