Question

Stiind cq x-2•y+13=52 determinati 3•x-6•y+1

Answer 1

x- 2·y+13=52  ⇒ x-2·y=52-13=39

3·x-6·y = 3(x-2·y) = 3·39=117⇒⇒ 3·x-6·y+1=117+1=118

Raspuns : 118

Answer 2

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