200(х+71)=54000
х+71=54000:200
х+71=270
х=270-71
х=199
320*3 126+169 960-295 504:4
<span>320 * 3 - ( 504 : 4 + 169)
</span><span>320 * 3= 960
</span><span>504 :4 = 126
</span><span>960 - (126+169) = 665</span>
4005/5=y+852
801=y+852
-y=852-801
-y=51
y=-51