−0.4r−3(−9r−6)
Solution
Sure, let's solve the equation step by step:
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First, distribute the -3 into the parentheses: -3 * -9r = 27r and -3 * -6 = 18. So, the equation becomes -0.4r + 27r + 18.
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Then, combine like terms: -0.4r + 27r = 26.6r. So, the equation becomes 26.6r + 18.
So, the simplified form of the equation is 26.6r + 18.
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