2x - 37x + 30 = 30 - 35x
-35x = -35x
0 = 0
x ∈ (-∞ ; +∞) (x - любое число)
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2x - 37x + 30 = 30 - 35x
-35x = -35x
0 = 0
x ∈ (-∞ ; +∞) (x - любое число)