Answer:
x=9
Step-by-step explanation:
3(x-5)=12 is equal to (3×x)-(3*5)=12
so:
3x-15=12
we want to get x by itself. so we are gonna get our variable and our constant on opposite sides.
so we will read 3x-15 as 3x and negative 15. how do we get to 0 from negative 15? we add 15 because the opposite of - is +.
so:
3x - 15= 12
+15. +15
------------------
3x. = 27
since we still want x alpne we are going to have divide the whole equation
3x/3=x
27/3=9
therefore x=9
