Question

Ma gandesc la un numar.il adun tripluilui sau.Din suma obtinuta scad 16 si obtin 24.La ce numar mam gandit?

Answer 1

$(x + 3x) - 16 = 24 \\ \\ x + 3x= 16 + 24 \\ \\ x + 3x = 40 \\ \\ 4x = 40 \\ \\ x = 40 \div 4 \\ \\ \boxed{ x = 10}$

Answer 2

x - numarul
x + 3*x = y
y-16 = 24 => y = 40
x+3x = 40
4x = 40
x = 10