Question

Consider this expression 5/6(1/2x+6)-3x
What is the value of the expression evaluated for x=12

Answer 1

-26

Explanation:

We are given an expression
`(5)/(6) ((1)/(2) x+6)-3x` and we are to find its value when x is equal to 12.

So we will substitute 12 in place of x and solve it to get:

`(5)/(6) ((1)/(2) x+6)-3x`

`=(5)/(6) ((1)/(2) *12+6)-3(12)`

Solving inside the brackets first:

`=(5)/(6) (6+6)-36`

`=(5)/(6) (12)-36`

`=5*2-36`

`=-26`

Therefore, the value of the given expression when x is equal to 12 is -26.

Answer 2

ANSWER

The correct answer is
`-26`

EXPLANATION

The expression given to us is,


`(5)/(6)( (1)/(2)x+ 6)-3x`

We plug in
`x=12`. That means we substitute 12 wherever we see x to obtain,


`(5)/(6)( (1)/(2)* 12+ 6)-3* 12`

We simplify the parenthesis first to obtain,


`=(5)/(6)( 6+ 6)-36`


`=(5)/(6)( 12)-36`


`=5* 2-36`


`=10-36`


`=-26`

Hence the expression evaluates to
`=-26`