7 × 2 - 0,35х = 0 8 × 2 - 0,32х = 0
14 - 0,35х = 0 16 - 0,32х = 0
14 - 0 = 0,35х 16 - 0 = 0,32х
14 = 0,35х 16 = 0,32х
х = 14 : 0,35 х = 16 : 0,32
х = 40 х = 50
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7 × 2 - 0,35 × 40 = 0 8 × 2 - 0,32 × 50 = 0