<span>-8×0,25×x=-3,2
-2</span><span>×х=-3,2
-2х=-3,2
х=1,6
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1) 18x - 27y - 8y + 8x = 26x - 35y
Х:8/15=5/32
х=5/32*8/15
х=1/12
56/х=16/21
х=56:16/21
х=56*21/16
х=7/2=3 1/3
63/88:х=54/121
х=63/88:54/121
х=63/88*121/54
х=77/48
х=1 29/48
Х * 215 - 4936 = 63 219
х * 215 = 63 219 + 4 936
х * 215 = 68 155
х = 68 155 : 215
х = 317
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317 * 215 - 4936 = 63 219
63 219 = 63 219