Please Help Me Quick with this math problem!!!!!!!!!!!!!!
2 answers:
Answer:
x=−5 and y=−1
Step-by-step explanation:
Let's solve your system by substitution.
y=2x+9;y=−x−6
Step: Solvey=2x+9for y:
y=2x+9
Step: Substitute2x+9foryiny=−x−6:
y=−x−6
2x+9=−x−6
2x+9+x=−x−6+x(Add x to both sides)
3x+9=−6
3x+9+−9=−6+−9(Add -9 to both sides)
3x=−15
3x
3
=
−15
3
(Divide both sides by 3)
x=−5
Step: Substitute−5forxiny=2x+9:
y=2x+9
y=(2)(−5)+9
y=−1(Simplify both sides of the equation)
Hope this helps!
Answer:
x= -5 y= -1
Step-by-step explanation:
You might be interested in
Answer:
D. -x2 + 2x -3
Step-by-step explanation:
the first step is we open all the brackets then it will be :
x2 - 3x - 2x2 + 5x - 3
= x2 - 2x2 - 3x + 5x - 3
= -x2 + 2x -3
Answer:
I think its D
Step-by-step explanation:
lmk if its wrong
Answer:
the degree of the monomial is 11
Step-by-step explanation:
x = 1
y^3 = 3
z^7 = 7
add the exponents 1+3+7 = 11
Step-by-step explanation:
Area of a square is: A= length x width or can be written as A= lw
Area of an rectangle is basically the same as the area of a square.
Hope that helps!
Answer:
-8.2, -2 1/2, 0.4, 2.4
Step-by-step explanation:
Just follow this answer
