Answer:
Step-by-step explanation:
We can solve this system of equations using the elimination method.
Let's start by multiplying the first equation by 3:
Now, multiply the second equation by 5:
Since both equations have 15x, we can eliminate the x by subtracting the two equations.
Now, substitute 2 for y to solve for x:
Therefore the solution to this system of equations is:
Answer:
10x - 8 or 2( 5x - 4)
Step-by-step explanation:
Perimeter of a rectangle = 2( Length + Width)
<u>Rectangle A </u>
Length = x + 8,
Width = x - 1
<u>Rectangle B</u>
Length = 4x + 5
Width = 3x - 2
Answer:
.2121/1000
42
Step-by-step explanation:
A^2 - b^2 = (a-b)(a+b)
To test it, expand the right hand side.