Question

Método de sustitución.
y=2x
4x+3y=30

Answer 1

Hola!

$y = 2x$

$4x + 3y = 30$

$4x + 3 \times (2x) = 30$

$4x + 6x = 30$

$10x = 30$

$x = 30 \div 10$

$x = 3$

Salu2 Sebas