Solve this eqution with work please also show work solve for x and y x=-y+5 y=-3x+3

2 answers:

7 0

The answer is x=−1 and y=6. You can solve it using a graph, substitution, or elimination.

tankabanditka [31]3 years ago

4 0

So you are given what x and y are. All you have to do is substitute and simplify.
Since y = -3x + 3
The y value in the first equation can be substituted for -3x + 3
I.e. x = - (-3x + 3) + 5
So where you see 'y' in the first equation, put in what y actually is.
Now simplify
x = 3x - 3 + 5 [two minuses makes a positive]
x = 3x + 2
-2x = 2
so x = 2/-2 = -1

With the value of x you found, substitute it in to find y
I.e. y = -3(-1) + 3
y = 3 + 3 = 6

So x = -1 and y = 6

You might be interested in

After Simon donated four books to the school library he had 28 books left. How many books did Simon have to start with?

andrew11 [14]

Answer:

Step-by-step explanation:

28+4

4 0

3 years ago

Read 2 more answers

Which expressions are equivalent to the one below? Check all that apply log₂ 2 + log₂ 8

S_A_V [24]

Answer:

A. 4 B. log₂(2^4)

Step-by-step explanation:

A. log₂ 2 = log₂ 2¹ = 1

log₂ 8 = log₂ 2³ = 3

log₂ 2 + log₂ 8 = 1 + 3 = 4

B. *log₂ 2⁴ = 4

3 0

4 years ago

Which rigid transformation would map ABC to ABF?

Lelechka [254]

Answer: The correct option C. The figure shows the a reflection across the line containing BA.

Explanation:

The rigid transforms means reflection, dilation and transformation.

In the given figure the two triangles are given ABC and ABF.

$CA=FA$

$\angle CAB=\angle FAB$

$AB=AB$

So by SAS the triangle CAB and FAB are congruent.

The common side is BA, so the figure shows the a reflection across the line containing BA. The point C and F are equal distance from the line BA. AS shown in below figure.

From the figure it is easily noticed that the triangle FAB is the mirror image of triangle CAB across the side AB.

Therefore the correct option is C.