How do you write the expression for Fifteen equals three more than six times a number and 6?

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Answer 1 · 2017-03-28T17:03:31

$15 = 3 + 6 x$ $15=3+6x$

or

$15 = 3 + 6 x + 6$ $15=3+6x+6$

or

$15 = 3 + 6 x + 36$ $15=3+6x+36$

Read to see how that is

Let the number be $x$ $x$

more than is addition( $+$ $+$ )

times is multiplication( $\cdot$ $*$ )

So six times a number is $6 \cdot x = 6 x$ $6*x=6x$

Three more than six times a number is $3 + 6 x$ $3+6x$

$:.$ Fifteen equals three more than six times a number is

$rArr15=3+6x$

With the 'and six', I believe you simply add $6$ to the above if it is not together. Meaning we would have;

$15=3+6x+6$

If it is together, then that means six times a number and six would be $6*(x+6)=6x+36$

In that case, it will be $15=3+6x+36$