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- anonymous

Will fan and metal!
Just say a,b,c,or d

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- anonymous

Will fan and metal!
Just say a,b,c,or d

- jamiebookeater

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- anonymous

A set of equations is given below:
Equation E: a = 5b + 1
Equation F: a = 3b + 4
Which statement describes a step that can be used to find the solution to the set of equations?
Equation F can be written as 5b + 1 = 3b + 4.
Equation F can be written as b + 1 = 3b + 4.
Equation F can be written as a = 3(a − 1) + 4.
Equation F can be written as a = 5(a − 4) + 1.

- anonymous

and the other one is

- anonymous

A student is trying to solve the system of two equations given below:
Equation P: y + z = 6
Equation Q: 8y + 7z = 1
Which of the following is a possible step used in eliminating the y-term?
(y + z = 6) ⋅ −8
(y + z = 6) ⋅ 7
(8y + 7z = 1) ⋅ 7
(8y + 7z = 1) ⋅ 8

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- anonymous

help i am going to fail!

- Z4K4R1Y4

To approach the first question:
if y = 6x – 3 and y = 3x + 4
I can say that 6x – 3 = 3x + 4. Does that make sense?

- DanJS

If a = Something AND a = Something else
then
Something = something else

- DanJS

Substitute what a equals in the first equation for a in the second equation, that is your answer

- DanJS

For the second, they want you to use the technique of adding together the two equations to have one variable cancel out.
If you multiply the first equation by (-8), then you will have -8y in the first equation and +8y in the second equation.
Adding the two equations together eliminates the Y variable , (-8y+8y) = 0y

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