Answer:
Step-by-step explanation:
Yo when you get these kind of questions you can use desmos calculator, for the future.
Answer:
200
Step-by-step explanation:
Divide 400 by 1/2 or 2.
First, multiply the second equation by 4 so that 8y can cancel out. Now you have
5x+8y=-29
and
28x-8y=-268
Add these equations to get
33x=-297
Divide both sides by 33, and you have
x=-9
Now, simply solve for y by plugging it into an equation, and you have
y=2
The final answer is (-9,2)!