When x=7,  5-3(x-1)= ?

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lemjay's profile pic

lemjay | High School Teacher | (Level 2) Senior Educator

Posted on

To evaluate the expression, plug-in the value of x.

`5-3(x-1)`

`=5-3(7-1)`

From here, follow the order of operations which is PEMDAS, So,simplify the expression insides the parenthesis.

`=5-3(6)`

Then, multiply.

`=5-18`

And subtract.

`=-13`

Hence, when `x=7` ,   `5-(x-1)=-13` .

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Jyotsana | Student, Grade 10 | (Level 1) Valedictorian

Posted on

5-3(x-1)=?   x=7

5-3(7-1)

5-3(6)

5-18

-13

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nisarg | Student, Grade 11 | (Level 1) Valedictorian

Posted on

When x=7,  5-3(x-1)= ?

so substitute 7 in the place of x

5-3(7-1)  follow pemdas and simplify

5-3(6)           subtract 1 from 7

5-18          multiply 3*6

-13            subtract 18 from 5

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jess1999 | Student, Grade 9 | (Level 1) Valedictorian

Posted on

If x = 7 then 5 - 3 ( x - 1 )=

First plug in 7

By plugging in 7, your equation should look like

5 - 3 ( 7 - 1 ) Now subtract 7 and 1

By subtracting, your equation should look like

5 - 3 ( 6 ) Now distribute the 3

By distributing, your equation should look like

5 - 18 Lastly just subtract 5 with 18

By subtracting you should get

= -13 which is your answer

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zumba96 | Student, Grade 11 | (Level 3) Valedictorian

Posted on

Plug it in

 x=7,  5-3(x-1)= ?

5-3(7-1)=5-3(6)

By the Order of Operations

5-18=

-13

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