Question

How do I solve for x? X+6x=56

Answer 1

x+6x=56

7x=56

x= 8

So, x is equal to 8

Answer 2

`ax^2+bx+c=0`

`x^2+6x=56`

`x^2+6x-56=0`
a=1 b=6 c=-56

`\Delta=b^2-4ac=6^2-4*1(-56)=36+224=260`

`√(\Delta)=2√(65)`

`x_1=(-b-√(\Delta))/(2a)=(-6-2√(65))/(2*1)=-3-√(65)`

`x_2=(-b+√(\Delta))/(2a)=(-6+2√(65))/(2*1)=-3+√(65)`