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Popular >

2u+9=8u+21

Solution

2 u + 9 = 8 u + 21

Solution

u = - 2

Solution steps

2 u + 9 = 8 u + 21

Move

9

to the right side

2 u = 8 u + 12

Move

8 u

to the left side

- 6 u = 12

Divide both sides by

- 6

u = - 2

Popular Examples

3 x^{2} + 6 x - 3 = 0

-2(12x+13)<=-5(13x+7)

- 2 (12 x + 13) \leq - 5 (13 x + 7)

4^{2} + 4

simplify sqrt(410)simplify

410

20 x^{2} - 27 x = - 14

Frequently Asked Questions (FAQ)

What is the answer to 2u+9=8u+21 ?
The answer to 2u+9=8u+21 is u=-2
Solve for u: 2u+9=8u+21
The solution is u=-2