Write an equivalent expression by distributing the "minus−" sign outside the parentheses:
minus, left bracket, minus, 5, point, 8, d, minus, 3, f, minus, 4, right bracket
−(−5.8d−3f−4)
minus, left bracket, minus, 5, point, 8, d, minus, 3, f, minus, 4, right bracket
−(−5.8d−3f−4)