What is the answer to 6x+12+9x-3=21x-6-3x ?

The answer to 6x+12+9x-3=21x-6-3x is x=5

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6x+12+9x-3=21x-6-3x

6 x + 12 + 9 x - 3 = 21 x - 6 - 3 x

x = 5

Solution steps

6 x + 12 + 9 x - 3 = 21 x - 6 - 3 x

Group like terms

6 x + 9 x + 12 - 3 = 21 x - 6 - 3 x

Add similar elements:

6 x + 9 x = 15 x

15 x + 12 - 3 = 21 x - 6 - 3 x

Add/Subtract the numbers:

12 - 3 = 9

15 x + 9 = 21 x - 6 - 3 x

Group like terms

15 x + 9 = 21 x - 3 x - 6

Add similar elements:

21 x - 3 x = 18 x

15 x + 9 = 18 x - 6

Move

9

to the right side

15 x = 18 x - 15

Move

18 x

to the left side

- 3 x = - 15

Divide both sides by

- 3

x = 5

0 + y = \frac{3}{2}

y = 3 (2) + 4

y = 3 (2) + 6

y = 3 (2) + 1

What is the answer to 6x+12+9x-3=21x-6-3x ?
The answer to 6x+12+9x-3=21x-6-3x is x=5
Solve for x: 6x+12+9x-3=21x-6-3x
The solution is x=5