What is the answer to 2x+9+3x+x=4x+9 ?

The answer to 2x+9+3x+x=4x+9 is x=0

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2x+9+3x+x=4x+9

2 x + 9 + 3 x + x = 4 x + 9

x = 0

Solution steps

2 x + 9 + 3 x + x = 4 x + 9

Subtract

9

from both sides

2 x + 9 + 3 x + x - 9 = 4 x + 9 - 9

Simplify

2 x + 3 x + x = 4 x

Add similar elements:

2 x + 3 x + x = 6 x

6 x = 4 x

Move

4 x

to the left side

2 x = 0

Divide both sides by

2

x = 0

∣ x - 6 ∣ \leq 7

b^{3} - b^{2} - b + 1

5 x^{2} (x^{2} - 49) \leq 0

x^{2} + 4 x + 4 = 6

6 x^{2} - 12 x - 90 = 152