-8x - 4y = 4 -5x - y = -11

asked Jun 12, 2024 201k views

5 votes

-8x - 4y = 4
-5x - y = -11

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3 votes

Hello!

$\sf -5x - y = -11\\\\\boxed{\sf y = 11 - 5x}$

so:

$\sf -8x - 4(11-5x) = 4\\\\-8x - 44 + 20x = 4\\\\12x - 44 = 4\\\\12x = 4 + 44\\\\12x = 48\\\\\\x = (48)/(12) \\\\\Large\boxed{\textbf{x = 4}}$

so:

$\sf y = 11 - 5x\\\\y = 11 - 5*4\\\\y = 11 - 20\\\\\Large\boxed{ \textbf{y = -9}}$

Dimbo answered Jun 18, 2024

by Dimbo

7.7k points

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