Pre-AlgebraSuperchallenge SharePre-Algebra · Superchallenge problemSimplify 4(2a−3b)−2[ a−3(b−a) ]4(2a - 3b) - 2\big[\,a - 3(b - a)\,\big]4(2a−3b)−2[a−3(b−a)].Check Show answer Walk through it step by step Practice more like this