A coordinate grid with one line labeled y equals 3 x plus StartFraction 3 over 4 EndFraction. The line passes through points at (negative 1, negative 2) and (0, 1). Tomas wrote the equation y = 3x +y equals 3 x plus StartFraction 3 over 4 EndFraction.. When Sandra wrote her equation, they discovered that her equation had all the same solutions as Tomas’s equation. Which equation could be Sandra’s? –6x + y = negative 6 x plus y equals StartFraction 3 over 2 EndFraction. 6x + y = 6 x plus y equals StartFraction 3 over 2 EndFraction. –6x + 2y = negative 6 x plus 2 y equals StartFraction 3 over 2 EndFraction. 6x + 2y = 6 x plus 2 y equals StartFraction 3 over 2 EndFraction.