5(х-2)-12х=32 2)2х+3(5-х)=15,5 3)15-4(7+2х)=1 - вопрос №794912952123222351553154721 от 0Peppa0 29.03.2022 17:49

Question

Алгебра: 5(х-2)-12х=32 2)2х+3(5-х)=15,5 3)15-4(7+2х)=1

0Peppa0 · Answer

5(х-2)-12х=325x - 10 - 12x = 325x - 12x = 32 + 10-7x = 42 | : (-7)x = -62) 2x + 3(5-x) = 15,52x + 15 - 3x = 15,5 2x - 3x = 15,5 - 15-x = 0,5 | : (-1)x = -0,5 3) 15 - 4(7+2x) = 115 - 28 - 8x = 1-8x = 1 - 15 + 28-8x = 14 | : (-8)x = 7/4...