Question

с
Реши неравенство: 12 - 8{ x - 2) 29-7,

Answer 1

$12-8(x-2)\geq 9-7x;\\12-8x+16\geq 9-7x;\\-8x+16+12\geq -7x+9;\\-8x+28\geq -7x+9;\\-8x+7x\geq 9-28;\\-x\geq -19;\\\pmb x \pmb \leq \pmb 1 \pmb9 .$