SOLUTION: can you please help me solve this problem step by step. This is linear inequalities probelm 5(x+1)<3x+4 = Thanks

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Question 127367: can you please help me solve this problem step by step. This is linear inequalities probelm 5(x+1)<3x+4 =
Thanks

Found 2 solutions by edjones, solver91311:
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
5(x+1)<3x+4
5x+5<3x+4
5x-3x+5-5<3x-3x+4-5 Add -3x and -5 to each side to get all the x's on one side and numerals on the other.
2x<-1
2x/2<-1/2
x<-.5
.
Ed

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
5%28x%2B1%29%3C3x%2B4

Solve inequalities the same way you solve equations, with two important exceptions. First, if you multiply or divide both sides of the inequality by a negative number, you must reverse the sense of the inequality.

For example, we know it is true that -2%3C1, but if we multiply both sides of the inequality by -1, we get 2 on the left and -1 on the right. The 'less than' symbol is no longer correct, it must be changed to 'greater than' because 2%3E-1

The second exception is that the solution set will be represented by an interval rather than a single value.

5%28x%2B1%29%3C3x%2B4

Distribute and remove parentheses
5x%2B5%3C3x%2B4

Add -3x to both sides
5x-3x%2B5%3C4
2x%2B5%3C4

Add -5 to both sides
2x%3C4-5
2x%3C-1

Finally, divide both sides by 2
x%3C-1%2F2 and the solution set is {x| x is real, x%3C-1%2F2}. You can also use interval notation (-infinity,-1%2F2). Note the parentheses around the interval. Had the problem included the possiblity of equality, i.e. had it been 5%28x%2B1%29%3C=3x%2B4, then the interval would have been denoted by
(-infinity,-1%2F2].
Since we never multiplied or divided by a number that is <0, the sense of the inequality remains as it was in the original inequality.