Question

Solve the following system of equations by substitution method:
2. 2x + 3y = 11
2x – 4y = – 24​

Answer 1

Answer:

bro see the answer and tell

Answer 2

Answer:(x,y)=(-2,5)

We can solve for

$\left \{ {{2x+3y=11} \atop {2x-4y=-24}} \right.$

If we divide equation below by GCD, we have

$x-2y=-12$

We know $x=2y-12$ --- 1

Plug it in $2x+3y=11$

Solve for y

$2(2y-12)+3y=11$

$4y-24+3y=11$

$7y=35$

∴ $y=5$

Plug $y=5$ into 1

∴ $x=10-12=-2$