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Nutka1998 [239]
3 years ago
11

Solve each system of linear Equations x+y=5 x-3y=3

Mathematics
1 answer:
JulijaS [17]3 years ago
7 0
X+y=5     y=5-x

x-3y=3
x-3(5-x)=3
x-15+3x=3
4x=18
x=4.5

y=5-x
y=0.5

check
x+y=5          4.5+0.5=5
x-3y=3         4.5-1.5=3
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How do I get the answer for N x 4/5 = 3/4
agasfer [191]
<span><span>n<span>x4/</span></span>5</span>=<span>3/<span>4

</span></span><span><span><span><span>1/5</span><span>n<span>x^4</span></span></span><span><span>x^4/</span>5</span></span>=<span><span>3/4</span><span><span>x^4/</span>5</span></span></span><span>
Answer is n=
<span>15/<span>4<span>x<span>4</span></span></span></span></span>
8 0
2 years ago
If 3 times a certain number is increased by 4 the result is 28. What is the number?
Minchanka [31]
3x+4=28 because 3 times an unknown number was mentioned first and mentioned together so they will be together, increased by 4 is +4 and comes after, the result of is the same as equals so you put the equals sign and whatever number they gave after.
8 0
3 years ago
I need help pls ASAP show your work
REY [17]

Answer:

X= 43/3

Step-by-step explanation:

-1/4 x 5 = 3/4x - 12

-5/4=3/4x -12

-5=3x - 48

-3x-5 = -48

-3x = -48 + 5

-3x= -43

-3 x= -43

X= 43/3

8 0
2 years ago
That's the answer... I don't understand how you get -43a and -6
Roman55 [17]
You want the explanation. Or answer?
4 0
2 years ago
Read 2 more answers
What irrational number is between 6 and 7
Alexxandr [17]

Answer:

2pi?

Step-by-step explanation:

Pi is an irrational number so I guess double of pi would be irrational too.

2pi would be something like 6.28318531...

4 0
3 years ago
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