Question

Solve for x. 3(x- 4)=15x​

Answer 1

`3(x- 4)=15x`

`3x-12=15x`

`3x-12+12=15x+12`

`3x=15x+12`

`3x-15x=15x+12-15x`

`-12x=12`

`(-12x)/(-12)=(12)/(-12)`

`x=-1`

Answer 2

x=-1

Explanation:

3(x−4)=15x

Use the distributive property to multiply 3 by x−4.

3x−12=15x

Subtract 15x from both sides.

3x−12−15x=0

Combine 3x and −15x to get −12x.

−12x−12=0

Add 12 to both sides. Anything plus zero gives itself.

−12x=12

Divide both sides by −12.

x=

−12

12

​

Divide 12 by −12 to get −1.

x=−1