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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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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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