goforthmusic235
10.10.2019 •
Mathematics
Five times a number is equal to the number increased by 12
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Ответ:
5 times of it is 5x
it's equal to the number increased by 12 or 12+x
remember, you can do anything to an equation as long as you do it to both sides
5x=12+x
minus x from both sides
4x=12
divie both sides by 4
x=3
the number is 3
Ответ:
Step-by-step explanation:
values of coefficients are:
vertex form is , where and
Inserting to the vertex form, we get: