Объяснение:
{6х-7≥4х-3
{3х+16≥8х-4
{6х-4х≥ -3+7
{3х-8х≥ -4-16
{2х≥4
{-5х≥ -20
{х≥4:2
{х≤ -20:(-5)
{х≥2
{х≤4
х∈[2;4]
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Объяснение:
{6х-7≥4х-3
{3х+16≥8х-4
{6х-4х≥ -3+7
{3х-8х≥ -4-16
{2х≥4
{-5х≥ -20
{х≥4:2
{х≤ -20:(-5)
{х≥2
{х≤4
х∈[2;4]