Answer:
x = 6
Step-by-step explanation:
3(x-4) = 18
you need to distribute the 3 into both x and -4 which makes the equation
3x-12=18
this happens because 3 multiplied by x is 3x and 3 multiplied by -4 is 12
now that we have our new equation we have to isolate the x. To do this we need to add 12 to both sides
3x - 12 = 18
+12 +12
3x = 30
now we have to divide out 3 to isolate the x
3x = 18
3 3
x = 6
