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Elanso [62]
3 years ago
11

Solve the following system of equations algebraically:

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
5 0

Answer:

(2,1) , (-4,-17)

x  = 2  ,  y =  1

x =  − 4  ,  y =  −  17

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The triangle below is isosceles. If ∠C≅∠B, then what is BC, in units?
ladessa [460]

Answer:

Step-by-step explanation:

If angles C and B have equal degrees then the side AC is also equal to  side AB in length and you can make their equations equal as well and solve for X.

2x+16=7x+6

get X's all on same side and the constants all on the other side,  

-2x +2x+16=7x+6+-2x

The X's on the left cancel out.

16=5x+6

-6+16=5x+6+-6

add -6 to each side.  On the right the 6 is now cancelled out.

10=5X

divide each side by 5 to cancel out the 5

10/5= 5X/5

2=X .  ANSWER

5 0
3 years ago
Okay can you please help me do this
sertanlavr [38]

Answer:

y=3

Step-by-step explanation:

Multiply 9 from both sides to cancel it out.

-27=-y/9

/9      /9

-3=-y

We can't have a negative variable, so we divide -1 from both sides.

-3=-y

/-1  /-1\

3=y

-hope it helps

7 0
2 years ago
Help with this plzzzz
kati45 [8]

Answer:

point C

Step-by-step explanation:

both planes include point C so that is where they intersect

4 0
3 years ago
Read 2 more answers
Solve the equation: 10 = -4 + x
Sonja [21]
10= -4 + x    x=14 because you do the opposite of the sign you see in this case its a plus sign so you subtract -4 from ten and since the 4 is a negative and your subtracting you would add 4 I know this probably didn't help it sounds really confusing but I have hope that it did :)
8 0
3 years ago
Read 2 more answers
15 liters decreased by 60%
puteri [66]
15 divided by 60= 3.50
8 0
3 years ago
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