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What is $\\simplify[]{ {a} + {b}*{c} + {d} }$?

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Did you evaluate the expression from left to right, without accounting for the order of operations?

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Perform multiplication first: $\\simplify[]{ {a} + {b}*{c} + {d} } = \\simplify[]{ {a} + {b*c} + {d} }$

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