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Sedbober [7]
3 years ago
9

Evaluate the expression for the given value of the variable 4(x-4); x=7​

Mathematics
2 answers:
svp [43]3 years ago
7 0

Answer:

12

Step-by-step explanation:

substitute x = 7 into the equation:

4 (7-4)\\4(3)\\12

vovikov84 [41]3 years ago
7 0

Answer:

12

Step-by-step explanation:

First, you insert the 7 in place of the x. Then you do what is in the parenthesis, according to PEMDAS. 7-4 = 3. You end up with 4(3). You then do distributive property and you end up with 12.

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A vender sold a combined total of 131 sodas and hot dogs. The number of hot dogs sold was 31 less than the number of sodas sold.
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Answer:

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Step-by-step explanation:

131 = x + x - 31

131 <em>+</em><em> </em><em>3</em><em>1</em><em> </em>= x + x - 31 <em>+</em><em> </em><em>3</em><em>1</em>

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x = 81

131 = 81 + (81 - 31)

131 = 81 sodas + 50 hot dogs

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