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Mathematics, 18.12.2020 17:20 fatlenny
The student did not distribute the negative when subtracting. Distributing the negative, the expression is equal to 6b + 4r β 2b β r. Then use the commutative property to rewrite it as 6b β 2b + 4r β r. Then you can use the distributive property to write as (6 β 2)b + (4 β 1)r, which simplifies to 4b + 3r.
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The student did not distribute the negative when subtracting. Distributing the negative, the express...
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