Solve the equation using multiplication or division. Check your answer.
-3x=12
x=
-4
To solve the equation -3x = 12, we need to isolate the variable x. We can do this by dividing both sides of the equation by -3:
-3x / -3 = 12 / -3
This simplifies to:
x = -4
To check if the answer is correct, substitute -4 back into the original equation:
-3(-4) = 12
12 = 12
Since both sides of the equation are equal, we can conclude that the solution x = -4 is correct.
To solve the equation -3x=12 using multiplication or division, we need to isolate the variable x on one side of the equation.
First, let's divide both sides of the equation by -3 to undo the multiplication of -3 with x:
(-3x) / (-3) = 12 / (-3)
This simplifies to:
x = -4
To check our answer, we substitute -4 into the original equation:
-3*(-4) = 12
This also simplifies to:
12 = 12
Since both sides are equal, our solution x = -4 is correct.