Question

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

Answer 1

$x-2y+13=52 \Rightarrow x-2y=52-13 \Rightarrow x-2y=39 \\ 3x-6y+1=3(x-2y)+1=3 \cdot 39+1=117+1=118 \\ \boxed{3x-6y+1=118}$

Answer 2

x-2y=52-13
x-2y=39/*3
3x-6y=117
3x-6y+1=118
Castigator??