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wariber [46]
3 years ago
13

Solving systems of three equations

Mathematics
1 answer:
seropon [69]3 years ago
8 0
Add like terms..........
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What is the reciprocal of 9/7?
Bingel [31]

Answer:

its 7/9

Step-by-step explanation:

you just have to flip the fractions

6 0
3 years ago
Read 2 more answers
WILL GIVE 20 POINTS
Oksanka [162]

Answer:

The answer is B

Step-by-step explanation:

75 + x = 90

First, Virginia had to write an equation to solve for x.

75 - 75 + x = 90 - 75

Second, Virginia used the subtraction property of equality to isolate x.

x = 15

Third, "x = 15" was the answer Virginia got after subtracting 90 and 75.

75 + 15 = 90

Finally, she had to verify her answer

3 0
3 years ago
9.
Llana [10]

Answer:

sorry but can u give me full question

Step-by-step explanation:

like picture

8 0
3 years ago
Help I need this answer before the day is over
iren2701 [21]
X=73 y=34

i think that is the answer
4 0
3 years ago
Please help! If possible please show your work. Thank you in advance!! :D
Rudiy27

Answer:

  • (-4)³ = -64
  • -64

Step-by-step explanation:

The first step in solving the equation is to cube both sides:

  (∛x)³ = (-4)³ . . . . . = (-4)(-4)(-4) = 16(-4) = -64

  x = -64 . . . . . simplified

__

We're not sure what "checking" is supposed to involve here. Usually, one would check the answer by seeing if a true statement is made when the answer is put into the original equation.

  ∛(-64) = -4 . . . true

Many calculators will not compute √(-64) because they compute roots using logarithms. The log of a negative number is not defined.

So, the way one would check this is to cube both sides, which is how we got the answer in the first place. We expect the same result from doing the same operation again, so it isn't really a check.

6 0
2 years ago
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