Question

How to solve

-3(x+4)=-15

Answer 1

-3(x+4)=-15

mutiply the bracket by -3

(-3)(x)= -3x

(-3)(4)=-12

-3x-12= -15

move -12 to the other side

sign changes from -12 to +12

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

-3x= -15+12

-3x= -3

divide both sides by -3

to get + x and by itself

-3x/-3= -3/-3

Answer:

x= 1

Answer 2

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

Explanation:

-3(x+4)=-15

---------------

-3 -3

x+4= 5

-4=-4

x=1

That should be right