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{2(2x + y) = 6
{x - 4,8y = 28
{4x + 2y = 6
{x = 28 + 4,8y
{4x + 2y = 6
{x = 28 + 4,8y
{4(28 + 4,8y) + 2y = 6
{x = 28 + 4,8y
{112 + 19,2y + 2y = 6
{x = 28 + 4,8y
{21,2y = -106
{x = 28 + 4,8y
{y = -5
{x = 28 - 24
{y = -5
{x = 4
{y = -5