Răspuns: [tex]\color{Red}\LARGE \boxed{\bf -6x -18y +2=-25}[/tex]
Explicație pas cu pas:
Buna!
[tex]\large \bf 2x + 6y - 5 = 4[/tex]
[tex]\large \bf 2x + 6y - 5 = 4~~~~\bigg|\cdot(-3)[/tex]
[tex]\large \bf -6x -18y - 5\cdot(-3) =-12[/tex]
[tex]\large \bf -6x -18y +15=-12[/tex]
[tex]\large \bf -6x -18y +2+13=-12[/tex]
[tex]\large \bf -6x -18y +2=-12 -13[/tex]
[tex]\color{OrangeRed}\Large \boxed{\bf -6x -18y +2=-25}[/tex]
==pav38==
