Emilia's Cafe offers two kinds of espresso: single-shot and double-shot. Yesterday afternoon, the cafe sold 75 espressos in all, 40% of which were single-shot. How many single-shot espressos did the cafe sell?

i need more details

step-by-step explanation:

32.5 is the answer i got thats the answer

1) the property is   ixi = a ⇔x = a   o x = -a

4(x-5)+3= 15⇒4x-20+3 = 15⇒4x-17= 15⇒4x = 15+17⇒4x = 32⇒x =32/4= 8

4(x-5) +3= -15⇒4x-20 +3 = -15⇒4x-17= -15⇒4x =-15+17⇒4x = 2⇒x =2/4= 1/2

the values are x =8 and x = 0,5