Question

solve these without14.2: challenge yourhere are a lot of systems of eqb $\begin{cases} y=7 \\ x=3y-4 end{cases}$

Explanation:

Step1: Substitute y=7 into x's equation

Substitute $y=7$ into $x=3y-4$:
$x=3(7)-4$

Step2: Calculate the value of x

$x=21-4=17$

Answer:

$x=17$, $y=7$