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4 March, 12:42

The number of question on a math test is represented (3x+1). The number of questions on the spelling test is represented by (x+12). Write an expression to find how many more questions were on the math test. Then evaluate the expression if the value x is 8

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  1. 4 March, 12:58
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    Step-by-step explanation:

    The number of questions on a math test is represented (3x+1). The number of questions on the spelling test is represented by (x+12).

    An expression to find how many more questions were on the math test would be

    = 3x + 1 - (x + 12)

    = 3x + 1 - x - 12

    = 3x - x + 1 - 12

    = 2x - 11

    When the value of x = 8, then the expression becomes

    2 * 8 - 11 = 16 - 11 = 5
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