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Popular >

1<3x+7<19

Solution

1 < 3 x + 7 < 19

Solution

- 2 < x < 4

+1

Interval Notation

(- 2, 4)

Solution steps

1 < 3 x + 7 < 19

If

a < u < b

then

a < u and u < b

1 < 3 x + 7 and 3 x + 7 < 19

1 < 3 x + 7 : x > - 2

3 x + 7 < 19 : x < 4

Combine the intervals

x > - 2 and x < 4

Merge Overlapping Intervals

- 2 < x < 4

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Frequently Asked Questions (FAQ)

What is 1<3x+7<19 ?
The solution to 1<3x+7<19 is -2<x<4