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andrew11 [14]
4 years ago
10

Which ordered pair is a solution of the equation?

Mathematics
1 answer:
GrogVix [38]4 years ago
6 0

Answer

A only (2,3)

Step-by-step explanation:

If you graph it or plug it into Desmos that can also help

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7x-9+3x=2x+18-x submit i want an answer please
oksano4ka [1.4K]

Answer:

x = 3

Step-by-step explanation:

7x - 9 + 3x = 2x + 18 - x

10x - 9 = x + 18

10x - x = 18 + 9

9x = 27

x = 3

6 0
3 years ago
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How do you know if a value is a solution to<br> an equation?
Alex787 [66]

Answer:

You know that a value is a soloution to a problem when you add the value into the problem to check if it solves the problem. :)

Step-by-step explanation:

7 0
3 years ago
the owner of an aquatic store used 17 1/2 gallons of water to fill aquariums. he puts 5 5/6 gallons of water in each aquarium. h
Lina20 [59]

He fills 3 tanks. Hope this helps!

5 0
4 years ago
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How to do 4 x 4 x 4 using an exponent
luda_lava [24]

Answer:

4^3

Step-by-step explanation:

4×4×4

Multiply 4 and 4 to get 16.

16×4

Multiply 16 and 4 to get 64.

64=4^3

6 0
3 years ago
Solve for x in the equation 2 x squared + 3 x minus 7 = x squared + 5 x + 39.
Nastasia [14]

Answer:

\implies x=1\pm \sqrt{47}

Step-by-step explanation:

We want to solve for x in 2x^2+3x-7=x^2+5x+39

You need to group and combine like terms and write in standard form:

2x^2-x^2+3x-5x-7-39=0

\imples x^2-2x-46=0

By comparing to ax^2+bx+c=0, we a=1,b=-2 and c=-46

The solution can be obtained using the quadratic formula.

x=\frac{-b\pm \sqrt{b^2-4ac} }{2a}

We substitute the coefficients to get:

x=\frac{--2\pm \sqrt{(-2)^2-4*1*-46} }{2*1}

x=\frac{2\pm \sqrt{4+4*46} }{2}

x=\frac{2\pm \sqrt{4*47} }{2}

x=\frac{2\pm2\sqrt{47} }{2}

\implies x=1\pm \sqrt{47}

The last choice is correct

5 0
3 years ago
Read 2 more answers
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