Convert the following inequality into an equation by adding a slack variable. 4.9x 1plus7.1x 2plus1.1x 3less than or equals19 Question content area bottom Part 1 Choose the correct answer below. A.4.9 x 1 plus 7.1 x 2 plus 1.1 x 3 plus 19 equals s 1 4.9x 1plus7.1x 2plus1.1x 3plus19equalss 1 B.4.9 x 1 plus 7.1 x 2 plus 1.1 x 3 minus s 1 equals 19 4.9x 1plus7.1x 2plus1.1x 3minuss 1equals19 C.4.9 x 1 plus 7.1 x 2 plus 1.1 x 3 plus s 1 equals 19 4.9x 1plus7.1x 2plus1.1x 3pluss 1equals19 D.4.9 x 1 plus 7.1 x 2 plus 1.1 x 3 equals 19 plus s 1 4.9x 1plus7.1x 2plus1.1x 3equals19pluss 1