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Novay_Z [31]
3 years ago
8

2X plus Y equals 7 3X minus 4Y equals five

Mathematics
1 answer:
Dvinal [7]3 years ago
7 0
\left \{ {{2x+y=7\ \ | *4} \atop {3x-4y=5}} \right. \\\\ \left \{ {{8x+4y=28} \atop {3x-4y=5}} \right. \\+----\\Addition\ method\\\\
11x=33\ \ \ | divide\ by\ 11\\
x=3\\\\y=7-2x\\
y=7-2*3=7-6=1\\\\Solution:\\ \left \{ {{y=1} \atop {x=3}} \right.
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Expand the expression and collect like terms.<br><br> - g - 4(2g - 6)
Readme [11.4K]

Answer:

A.T.Q

first we need to open the bracket

,when we open breaket the sign in the bracket will change

so the question is

- g - 4 + 2g + 6

now, we take like terms together

- g + 2g - 4 + 6

g + 2 is the answer by solving

8 0
2 years ago
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Tems11 [23]

Answer:

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Step-by-step explanation:

what I did was that I divide 130/5 which gave me 26

7 0
3 years ago
Read 2 more answers
What is the area of the kite?<br> 6 ft<br> 14 ft
Dovator [93]

Answer:

Step-by-step explanation:

if these are diagonals ,then

area=(product of diagonals)/2

=(6*14)/2=42 ft²

4 0
2 years ago
Help asap! will award brainly and pls explain!
cluponka [151]

This is a right angle triangle.

So, by Pythagoras theorem,

√(32^2+20^2) = x

or √(1024+400) = x

or √1424 = x

or <em>37.74 = x</em>

3 0
3 years ago
8. Find GH,<br> E<br> 3-4<br> HY<br> -<br> H<br> 2<br> 3x - 4<br> G<br> SI<br> F<br> 9x - 59<br> D
Ostrovityanka [42]

Answer:

GH= 47

Step-by-step explanation:

2(3x - 4) = 9x - 59

6x - 8 = 9x - 59

6x - 9x =  - 59  + 9

\cfrac{ - 3x}{ - 3}  =  \cfrac{ - 51}{ - 3}

x = 17

gh = 3(17)  - 4

51 - 4

= 47

~

8 0
2 years ago
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