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Ivan
3 years ago
6

Please help me with #13 and #14! Please explain how you did it! Thanks!

Mathematics
2 answers:
natulia [17]3 years ago
7 0
#13 is the first one and #14 is the last, if need to explain, reply back plz
denis-greek [22]3 years ago
3 0

13) 2x + 5 = 2x + 11   ⇒  the 2x cancels out on both sides leaving 5 = 11 which is a false statement so there is no solution that will make it a true statement.

14) -11k + 14 = -11k - 25  ⇒ same as above.  the -11k cancels out leaving 14 = -25

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Step-by-step explanation:

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3 years ago
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4 0
3 years ago
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(a) Tom says that 1/5 + 7/20 = 8/25
mezya [45]

numerator = top part of the fraction

denominator = bottom part of the fraction

* means multiply

a.

you can only add the numerator when the denominator is the same

cant add the denominator

denominator has to be the same

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b.

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3/4 ÷ 15/8 =

3/4 * 8/15 =

24/60 = divide both top and bottom by 12 =

2/5

7 0
3 years ago
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