Question

-2x+5y=12
4x+3y=-4

do it using substitution method take y common ​

Answer 1

Step-by-step explanation:

$- 2x + 5y = 12 \\ 5y = 12 + 2x \\ y = \frac{12 + 2x}{5} .........(1) \\ \\ 4x + 3y = - 4 \\ 4x + 3( \frac{12 + 2x}{5} ) = - 4 \\ 4x + \frac{36 + 6x}{15} = - 4 \\ \frac{60x + 36 + 6x}{15} = - 4 \\ 36 + 66x = - 60 \\ 66x = - 96 \\ x = \frac{ - 32}{22} \\ \\ hope \: it \: helps \: uh...$