Bonjour , J’aurai besoin d’aide sur ce problème que je n’arrive pas du tout à résoudre .
Si possible , j’aimerai bien la démarche et les explications ( explications non obligées )

Merci beaucoup .

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

How many ordered pairs of positive integers satisfy xy=32?

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?