Answer:
A) False
B) True
C) True
D) False Solution is actually (-3, -3)
work below
Note: Used Elimination Method
Multiply the first equation by -2,and multiply the second equation by 1.
−2(−2x+y=3)
1(3x+2y=−15)
Becomes:
4x−2y=−6
3x+2y=−15
Add these equations to eliminate y:
7x=−21
Then we solve 7x = −21 for x:
7x = −21
7 7
(we Divide both sides by 7)
x=−3
Now that we've found x let's put it back in to solve for y.
Put down an original equation:
−2x+y=3
Substitute−3 for x in−2x+y=3:
(−2)(−3)+y=3
y+6=3(Simplify both sides of the equation)
y+6+−6=3+−6(Add -6 to both sides)
y= −3
Solution
(-3, -3)
