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Olin [163]
4 years ago
15

Solve the system of equations. -5x+2y=9 y=7x

Mathematics
2 answers:
posledela4 years ago
6 0

Answer:

x = 1

Step-by-step explanation:

Substitute y with 7x.

-5x + 2(7x) = 9

Solve parentheses.

-5x + 14x = 9

Combine like terms.

9x = 9

Now solve the equation.

9x = 9

/9     /9

-----------

x = 1

Law Incorporation [45]4 years ago
4 0

Answer:

uuuuuuuuuuum

Step-by-step explanation:

maybe it's...


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How would I solve this equation?
sergiy2304 [10]

Let's solve your equation step-by-step.<span><span><span>
2/3</span><span>(<span><span>3x</span>+1</span>)</span></span>=5</span>
Step 1: Simplify both sides of the equation.<span><span><span>
2/3</span><span>(<span><span>3x</span>+1</span>)</span></span>=5</span><span>
Simplify: (Show steps)</span><span><span><span>
2x</span>+<span>2/3</span></span>=5</span>
Step 2: Subtract 2/3 from both sides.<span><span><span><span>
2x</span>+<span>2/3</span></span>−<span>2/3</span></span>=<span>5−<span>2/3</span></span></span><span><span>
2x</span>=<span>13/3</span></span>
Step 3: Divide both sides by 2.<span><span><span>
2x/</span>2</span>=<span><span>13/3/</span>2</span></span><span>
x=<span>13/6</span></span>
Answer:<span>
x=<span>13/<span>6</span></span></span>
8 0
3 years ago
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V)<br> a common multiple of 6 and 8,<br> What number is a common multiple of 6 and 8?
Vaselesa [24]

Answer:

6, 12, 18, 24, 30, 36, etc.

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HIIII peeps what is 4+2 +43 ( i'm boredddd)
DochEvi [55]

Answer:

49

Step-by-step explanation:

43 +4 make sure you add them

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4 0
3 years ago
Enter the number using calculator notation.<br> 8.5x 103<br> The number in calculator notation is
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Answer: 875.5x

Step-by-step explanation:

4 0
3 years ago
If f(p) divided by x-p and x-q have the same remainder
oee [108]
Hello,


x^2-y^2=(x+y)(x-y)
x^3-y^3=(x-y)(x²+xy+y²)

Let's use Horner's division

.........|a^3|a^2.|a^1..........|a^0
.........|1....|5....|6..............|8....
a=p...|......|p....|5p+p^2....|6p+5p^2+p^3
----------------------------------------------------------
.........|1....|5+p|6+5p+p^2|8+6p+5p^2+p^3

The remainder is 8+6p+5p^2+p^3 or 8+6q+5q^2+q^3


Thus:
8+6p+5p^2+p^3 = 8+6q+5q^2+q^3
==>p^3-q^3+5p^2-5q^2+6p-6p=0
==>(p-q)(p²+pq+q²)+5(p-q)(p+q)+6(p-q)=0
==>(p-q)[p²+pq+q²+5p+5q+6]=0 or p≠q
==>p²+pq+q²+5p+5q+6=0

And here, Mehek are there sufficients explanations?
3 0
3 years ago
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