someone please shoe me how to do this math probley 7x-30<19?

Answer 1

7x - 30 <19

7x - 30 + 30 < 19 + 30

7x < 49

7x/7 < 49 / 7

x < 7

The answer is x < 7

Insert th x value into the equation

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Check

7x - 30 < 19

7(7) - 30< 19

49 - 30 < 19

19 = 19

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Answer 2

7x-30<19
7x<49
x<7

Answer 3

Set it up as 7x - 30 = 19
7x= 30+19
7x = 49 now divide by 7 on both sides
x = 7

Answer 4

well, you handle it just like an algebraic problem where X= something you take 19 and add 30 to cancel out the -30 so you get 7X=49 then you just devide by 7 and get

X= 7 but.... it isnt X= 7
it's X<7 so on a number line it would be
1 2 3 4 5 6 7 8 9 10 11 12
<--------------X
<------------------------------------------------------------------------------->
but remember that it is (less than) so it actualy does not touch 7, it just comes REALY close. then, it goes all the way down to -infinity
it is so supper easy once you get used to it. just remember... if it was -7x-30<19 (which you will get eventualy) it does not make X<-7.... it is actualy X>-7 because when you devide by a negative number you must switch the sign around or it will not make sense.

Answer 5

wouldnt you just add the 30 to the 19 which = 49 then divide the 49 by 7 which = 7
so x< 7

Answer 6

7x-30<19
7x<19+30
7x<49
x<7
therefore x takes the value 1,2,3,4,5,6

Answer 7

7x - 30 <19
Add 30 to each side of inequality, giving:
7x < 49
Divide each side of the equation by 7 giving:
x < 7

Answer 8

7x-30<19
7x<19+30
7x<49
x<49/7
x<7

Answer 9

Treat the < sign as if it were an = sign.