Question

question
solve the system by substitution.

$y = 9x$
$y = 8x + 4$

Explanation:

Step1: Substitute $y=9x$ into second equation

$9x = 8x + 4$

Step2: Isolate $x$ term

$9x - 8x = 4$

Step3: Solve for $x$

$x = 4$

Step4: Substitute $x=4$ into $y=9x$

$y = 9\times4$

Step5: Calculate value of $y$

$y = 36$

Answer:

$x=4$, $y=36$