Question

решите уравнение 1)11х=36-х 2)9х+4=48-2х
3)8-4х=2х-16 4) 0,4x+3,8=2,6-0,8x

Answer 1

Решение :

$1)11x = 36 - x \\ 11x + x = 36 \\ 12x = 36 \\ x = 3 \\ 2) 9x + 4 = 48 - 2x \\ 9x + 2x = 48 - 4 \\ 11x = 44 \\ x = 4 \\ 3)0.4x + 3.8 = 2.6 - 0.8x \\ 0.4x + 0.8x = 2.6 - 3.8 \\ 1.2x = - 2.4 \\ x = - 2$
Объяснение :
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