Pre-AlgebraHard SharePre-Algebra · Hard problemExpand: −(4a−3b+7)-(4a - 3b + 7)−(4a−3b+7).A−4a+3b−7-4a + 3b - 7−4a+3b−7B−4a−3b−7-4a - 3b - 7−4a−3b−7C−4a+3b−8-4a + 3b - 8−4a+3b−8D−8a+3b−7-8a + 3b - 7−8a+3b−7Check Show answer Walk through it step by step Practice more like this