3 years ago

The sum of 237 and six times the opposite of a number is 405. What is the number?

2 answers:

8 0

The number is 28.

The equation would be:

237 + 6(x) = 405

The problem states that 6 times the opposite of a number, however, since the number sign was not given, we do not know whether it is in a positive or negative form. So we leave it as only x.

237 + 6x = 405
6x = 405 - 237
6x = 168
6x / 6 = 168 / 6
x = 28

To check:

237 + 6 (28) = 405
237 + 168 = 405
405 = 405

Nikitich [7]3 years ago

8 0

The answer is -2193
the opposite of 405 is -405
now multiply -405*6= -2430
finally add 2430+237=-2193<span />

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