Answer:
x=1 -3(1+4)=-15
Step-by-step explanation:
-3(x+4)=-15
---------------
-3 -3
x+4= 5
-4=-4
x=1
That should be right
-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
