Pre-AlgebraMedium SharePre-Algebra · Medium problemExpand: −(x−7)-(x - 7)−(x−7).A−x−7-x - 7−x−7B−x+7-x + 7−x+7C−x+14-x + 14−x+14D−x+8-x + 8−x+8Check Show answer Walk through it step by step Practice more like this