That's a linear equation in 'x'.
You didn't ask for the solution, but here it is anyway:
7x + 2 = 23
Subtract 2 from each side:
7x = 21
Divide each side by 7:
x = 3
Chat with our AI personalities
23 = 7x + 7x - 5 = 14x - 5 14x = 23 + 5 = 28 x = 28/14 = 2
7x = 21 x = 3
7x + 2 = 5,6
X=4.2666666666667
7x+2-2=16-27x = 147x/7 = 14/7x = 2