do you mean 3x = 21? If so,
start off by dividing each "side" by 3.
3 divided by 3 = 1. 21 divided by 3 = 7.
Then, you are left with the equation 1x = 7
The equation can be simplified to: x = 7. Tada!
do you mean 3x = 21? If so,
start off by dividing each "side" by 3.
3 divided by 3 = 1. 21 divided by 3 = 7.
Then, you are left with the equation 1x = 7
The equation can be simplified to: x = 7. Tada!
all-them-marvel-feels is correct!
Your equation is written as an Expression therefore making no sense. I would reword the equation for clarity. But, given that 3x=21 is what you mean. You have been answered.