Question

Sabendo que 2x+3y=4 E a-2b=3, o valor da expressao 2ax-4bx+3ay-6by e:

Answer 1

Olá, novamente!

$\\ \mathsf{2ax - 4bx + 3ay - 6by =} \\\\ \mathsf{2x(a - 2b) + 3y(a - 2b) =} \\\\ \mathsf{(a - 2b) \cdot \left [ 2x + 3y \right ] =} \\\\ \mathsf{3 \cdot 4 =} \\\\ \boxed{\mathsf{12}}$