Question

plz help me in this question briefly and with explanation.....​

Answer 1

Answer:

Step-by-step explanation:

Let the number be x.

Now,

       7x + 50 + 40 = 300

       7x + 90 = 300

                7x = 300 - 90

                     = 210

                   x = 210/7

                      = 30

Answer 2

Answer:

Answer is 30

Step-by-step explanation:

Solution:

Let the required number be x.

According to the given data, it seems to be a linear equation in x

Seven times the number gives 7x

Adding a fifty to that number gives 7x + 50 ____ (1)

To reach a triple century means the above equation needs to be equated to 300

Still forty is required for it to be equated to 300

7x + 50 = 300 – 40

7x +50 + 40 = 300

7x + 90 = 300

7x=300-90=210

7x=210

x=210/7=30

x=30

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