Question

resolva a seguinte equacao:

Answer 1

Explicação passo-a-passo:

{3x+5y=5

{4x-5y=2

7x=7

x=7/7

x=>1

3x+5y=5

3×1+5y=5

3+5y=5

5y=5-3

5y=2

y=2/5

Answer 2

Resposta:

$\textsf{Leia abaixo}$

Explicação passo a passo:

$\begin{cases}\mathsf{3x + 5y = 5}\\\mathsf{4x - 5y = 2}\end{cases}$

$\mathsf{3x + 5y + 4x - 5y = 5 + 2}$

$\mathsf{7x = 7}$

$\mathsf{x = \dfrac{7}{7}}$

$\boxed{\boxed{\mathsf{x = 1}}}$

$\mathsf{5y = 4x - 2}$

$\mathsf{5y = 4(1) - 2}$

$\mathsf{5y = 4 - 2}$

$\mathsf{5y = 2}$

$\boxed{\boxed{\mathsf{y = \dfrac{2}{5}}}}$