The balanced scale represents the equation: 3x + 1 = x + 3 If one x block is subtracted from the right side and three numbered blocks are subtracted from the left side. What process will balance the scale? A) subtract one x block from the left side and subtract three numbered blocks from the left side B) subtract one x block from the left side and subtract three numbered blocks from the right side C) subtract one x block from the right side and subtract three numbered blocks from the left side D) subtract one x block from the right side and subtract three numbered blocks from the right side