Question

-4 (3x + 1) + x - 3 = 15

Answer 1

we need to solve the following equation:

`-4(3x+1)+x-3=15`

we will first apply the distributive law to the parenthesis

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

the we operate similar terms:

`(-12x+x)+(-4-3)=15`

simplifying

`-11x=15+7`
`-11x=22`

finally we divide by -11 in both sides of the equality

`(-11x)/(-11)=(22)/(-11)`

and simplifying, we obtain that:

`x=-2`