Just multiply 20 by both sides.
n = 20(6/8)
Multiply that out and that is your answer :)
340 is the total after the two transactions
I’m pretty sure it’s Friday
X = [-b + - sqrt(b^2 - 4 * a * c)] / 2a
x = [5 + - sqrt(25 - 4* 1 * -4)] /2
x = [5 + - sqrt(25 + 16)] /2
x = [5 + - sqrt(41)]2
x = [5 + sqrt(41)]/2 = 5.7
x = [5 - sqrt(41)] /2 = -0.7
The answer is -0.7