{ 8x+5≥9x-7
{-12x+6>-15x-9
{х=12
{х=-5
х∈(-5;12]
{5x+7>-3
{8x<16
{х>-2
{х<2
х∈(-2;2)
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{ 8x+5≥9x-7
{-12x+6>-15x-9
{х=12
{х=-5
х∈(-5;12]
{5x+7>-3
{8x<16
{х>-2
{х<2
х∈(-2;2)