9 Using the system of equations below, organize the steps in the correct order.
2x + 5y = 12
y= 42 - 2
Get the solution (1, 2)
III III III
Solve this new equation for x.
A
Substitute x=1 into 2nd Equation to solve fory
III
Substitute 4x-2 into Equation 1

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Step-by-step explanation:

The steps taken to solve this system of equations would first be:

1. Sub 4x-2 into your first equation, 2x+5(4x-2)= 12 ->

2. Solve/simplify this equation to get x=1

3. Sub x=1 into your second equation and solve for y = 2

4. Get the solution (1,2)

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

125 yards

step-by-step explanation:

i take 75 plus 50.