3 years ago

Write and solve an equation to find the number n. The sum of twice a number and 13 is 75.

Mathematics

2 answers:

irina1246 [14]3 years ago

7 0

Answer:

31 is n

Step-by-step explanation:

75=13+2n

75-13=62

62=2n

62/2=31

31=n

xeze [42]3 years ago

7 0

Answer:

Let the required number be "n"

According to the above problem,

$2n + 13 = 75 \\ 2n = 75 - 13 \\ 2n = 62 \\ n = \frac{62}{2} \\ \boxed{n = 31 }$

Therefore,

n = 31 is the right answer.

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