What is the answer to 3(2x+5)=3x+4x ?

The answer to 3(2x+5)=3x+4x is x=15

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3(2x+5)=3x+4x

3 (2 x + 5) = 3 x + 4 x

x = 15

Solution steps

3 (2 x + 5) = 3 x + 4 x

Add similar elements:

3 x + 4 x = 7 x

3 (2 x + 5) = 7 x

Expand

3 (2 x + 5) : 6 x + 15

6 x + 15 = 7 x

Move

15

to the right side

6 x = 7 x - 15

Move

7 x

to the left side

- x = - 15

Divide both sides by

- 1

x = 15

\frac{- ( 3 + 5 )}{4} = \frac{x ( 7 - 8 )}{0.5}

2 x^{2} + 4 x + 8 = 2 (x - h)^{2} + k

26 = x 2

52 y - 3 (12 + 9 y) = 64

\frac{4 x + 2}{5} - \frac{4 x}{3} = \frac{2 ( x + 13 )}{15}