Question

Stiind ca x-2y+13=52 , determinati 3y-6y+1

Answer 1

x-2y+13=52
x-2y=52-13=39
se inmulteste cu 3
3x-6y=39*3=117
3x-6y+1=117+1
3x-6y+1=118

Answer 2

x-2y+13=52⇒x-2y=39;
⇒x-2y=39/·3
⇒3x-6y=117;
⇒3x-6y+1
⇒117+1=118;