-7x - 2y = -3
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3x = y
(3, 2)
2y = 4x + 4y = 2x + 2
3x - 5 = 2y : rewrite the equation with 2y as the lead term. 2y = 3x - 5 : divide both sides by 2 then, y = 3/2x - 21/2 or y = 1.5x - 2.5
2y + 3 = 3y + 9 2y - 3y = 9 - 3 or -y = 6 so y = -6