Answer:
Whatever makes the statement true.
Explanation:
Example:
19=3x+1
Subtract 1 from both sides.
19-1=3x+1-1
18=3x
Divide both sides by 3.
18/3=(3x)/3
When x is alone on one side, the answer is on the other. In this case…
6=x
If you plug in 6 for x, you get 19.
3(x)+1=19
3(6)+1=19
3(6)=18
18+1=19