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Popular >

-15<= 2x+7<=-9

Solution

- 15 \leq 2 x + 7 \leq - 9

Solution

- 11 \leq x \leq - 8

+1

Solution steps

- 15 \leq 2 x + 7 \leq - 9

If

a \leq u \leq b

then

a \leq u and u \leq b

- 15 \leq 2 x + 7 and 2 x + 7 \leq - 9

- 15 \leq 2 x + 7 : x \geq - 11

2 x + 7 \leq - 9 : x \leq - 8

Combine the intervals

x \geq - 11 and x \leq - 8

Merge Overlapping Intervals

- 11 \leq x \leq - 8

Popular Examples

-5x+2+2x+4=-3x+8

- 5 x + 2 + 2 x + 4 = - 3 x + 8

factor ab-abc+abcd-abcde factor

ab - ab c + ab c d - ab c d e

5 x = 8 x - 15

factor 3a^4+81a factor

3 a^{4} + 81 a

simplify (3-2)/(3+2)simplify

\frac{3 - 2}{3 + 2}

Frequently Asked Questions (FAQ)

What is -15<= 2x+7<=-9 ?
The solution to -15<= 2x+7<=-9 is -11<= x<=-8