What is the answer to 5x+15+4x=6x-3(x+9) ?

The answer to 5x+15+4x=6x-3(x+9) is x=-7

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5x+15+4x=6x-3(x+9)

5 x + 15 + 4 x = 6 x - 3 (x + 9)

x = - 7

Solution steps

5 x + 15 + 4 x = 6 x - 3 (x + 9)

Group like terms

5 x + 4 x + 15 = 6 x - 3 (x + 9)

Add similar elements:

5 x + 4 x = 9 x

9 x + 15 = 6 x - 3 (x + 9)

Expand

- 3 (x + 9) : - 3 x - 27

9 x + 15 = 6 x - 3 x - 27

Add similar elements:

6 x - 3 x = 3 x

9 x + 15 = 3 x - 27

Move

15

to the right side

9 x = 3 x - 42

Move

3 x

to the left side

6 x = - 42

Divide both sides by

6

x = - 7

- 3 x + 8 = 14

7 (- 3 x - 7) = - (5 x - 2)

2 x - 32 + 4 (3 x - 2462) = 14 x

- 2 x - 7 (x - 3) = 111

15 x + 5 = 17 x - 1

What is the answer to 5x+15+4x=6x-3(x+9) ?
The answer to 5x+15+4x=6x-3(x+9) is x=-7
Solve for x: 5x+15+4x=6x-3(x+9)
The solution is x=-7