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Tatiana [17]
3 years ago
13

Y=x+2 and x+y=8 in substitution method​

Mathematics
2 answers:
raketka [301]3 years ago
5 0

Answer:

y = x + 2 \\ x + y = 8 \\ x + x + 2 = 8 \\ 2x = 8 - 2 = 6 \\ 2x = 6 \\ x = 6 \div 2 = 3 \\ y = x + 2 = 3+ 2 = 5

ollegr [7]3 years ago
3 0

Answer

X= 3 y=5

Step-by-step explanation:

y=x+2

x+y=8

plug in (x+2) for y into the equation x+y=8 to get the same variable.

x+(x+2)=8

2x+2=8

2x=6

x=3

plug in x=3 into x+y=8

3+y=8

y=5

Therefore, x=3, y=5

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X=5-3Y<br> X=2Y-10<br> Whats the answer
prohojiy [21]
X = 5 - 3y
x = 2y - 10

5 - 3y = 2y - 10
<u>  + 3y + 3y        </u>
       5 = 5y - 10
  <u>+ 10        + 10</u>
     <u>15</u> = <u>5y</u>
      5      5
       3 = y
x = 2y - 10
x = 2(3) - 10
x = 6 - 10
x = -4
(x, y) = (-4, 3)
6 0
3 years ago
Read 2 more answers
Ellie wants to change her password which is ELLIE9 but with same letters and number. In how
MissTica

\dfrac{6!}{2!2!}-1=\dfrac{3\cdot4\cdot5\cdot6}{2}-1=180-1=179

8 0
3 years ago
Plz help me with this binary division whith full process/explanation 1001010 ÷ 101​
aivan3 [116]

Answer:

Step-by-step explanation:

Its like doing a long division with base 10 numbers:

           1110    <----------- Quotient

101)1001010

        101

         1000

            101

               111

                101

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So the answer is 1110 remainder 100.

We can confirm this by converting to decimal numbers

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74 / 5 = 14 remainder 4.

3 0
2 years ago
What is the least common multiple of 10 and 7?
alexgriva [62]

Answer:

70 is the least common multiple of 10 and 7

4 0
2 years ago
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stepan [7]

Answer:

x= -19

y= -14

Step-by-step explanation:

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It tells you what y is already. You substitute that into the second equation and then solve. Then you use that answer and substitute it back into the first equation's x, and then you'll get your full answer.

Hope this helps <3

4 0
1 year ago
Read 2 more answers
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