Step-by-step explanation:
1. Right
2. Right
3. Right
4. Right
5. Right
6. Right
7. Its not properly visible sorry for this.
8. Its wrong
9. Right
10. Its wrong
11. Right
12. Its wrong.... Bcz square of minus is plus
13. Right
14. According to the BODMAS rule..
15.
16.
<h3>Hope this helps u </h3>
... ✌️❤️
I am thinking A) Or B) because iPlease chose as best if i am wrong please don't be mad most of my stuff is correct
I would love to use substitution (It is simplier that way I guess)
solve your system of equations.
x+2y=−1;x−y=5
Solve x+2y=−1 for x:
x+2y+−2y=−1+−2y(Add -2y to both sides)
x=−2y−1
Substitute (−2y−1) for x in x−y=5:
x−y=5
−2y−1−y=5
−3y−1=5(Simplify both sides of the equation)
−3y−1+1=5+1(Add 1 to both sides)
−3y=6
−3y/−3 = 6/−3(Divide both sides by -3)
y=−2
Substitute (−2) for y in x=−2y−1:
x=−2y−1
x=(−2)(−2)−1
x=3(Simplify both sides of the equation)
So the answer is (x = 3 and y = -2)
