What is the answer to 3x+12-4x=8x-15 ?

The answer to 3x+12-4x=8x-15 is x=3

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3x+12-4x=8x-15

3 x + 12 - 4 x = 8 x - 15

x = 3

Solution steps

3 x + 12 - 4 x = 8 x - 15

Group like terms

3 x - 4 x + 12 = 8 x - 15

Add similar elements:

3 x - 4 x = - x

- x + 12 = 8 x - 15

Move

12

to the right side

- x = 8 x - 27

Move

8 x

to the left side

- 9 x = - 27

Divide both sides by

- 9

x = 3

3 x + 2 = 6 x - 4

\frac{- x}{7} + 1 = 19

2.52 \cdot 1 0^{- 10} = 0.405 \cdot 5.37 \cdot 1 0^{- 10} + 0.595 x

x, - x + 6 y = 12

lo g_{2} (1) = 2