Question

If 3x=-21 , then x=7

Answer 1

3x = -21 Equation

3x/3x = - 21/3x Divide the 3x by istself so it cancels out. and what you do to . one side you must do to the other so -21/3x

x = -7 Aswer to -21/3

Step-by-step explanation:

Answer 2

it is -7

Step-by-step explanation:

It is -7 because the answer ended up being a negative and 3×-7=-21