What is the answer to x-3x+4=3-9 ?

The answer to x-3x+4=3-9 is x=5

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x-3x+4=3-9

x - 3 x + 4 = 3 - 9

x = 5

Solution steps

x - 3 x + 4 = 3 - 9

Add similar elements:

x - 3 x = - 2 x

- 2 x + 4 = 3 - 9

Subtract the numbers:

3 - 9 = - 6

- 2 x + 4 = - 6

Move

4

to the right side

- 2 x = - 10

Divide both sides by

- 2

x = 5

25 x^{2} - (x + 2 y + 4 z)^{2}

∣ x + 5 ∣ < 4

b^{4} - 7 b^{2} - 144

2 k^{2} + 2 = 4 k

- \frac{7}{2} \cdot \frac{1}{6}