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ale4655 [162]
3 years ago
8

7x+(-7)=9x-7 what is the answer?

Mathematics
2 answers:
erastova [34]3 years ago
5 0

Answer:

x=0

Step-by-step explanation:

7x+(-7)=9x-7

Add 7 to each side

7x+(-7)7=9x-7+7

7x = 9x

Subtract 7x from each side

7x-7x = 9x-7x

0 = 2x

Divide by 2

0 = 2x/2

0 = x

grin007 [14]3 years ago
4 0

Hello,

<em>I hope you and your family are staying safe and healthy! </em>

Answer: 0

Step-by-step explanation:

7x + (-7) = 9x - 7

7x - 7 = 9x - 7

Now susbtract 9x from both sides

7x -7 - 9x = 9x - 7 - 9x\\-2x - 7 = -7

Then add 7 to both sides

-2x - 7+7=-7+7\\2x=0

x = \frac{0}{-2} \\x = 0

--------------

If you find my answer helpful, please give it 5 stars and press the heart. Thanks!

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3 years ago
£54,000 split ratio 1:3:8
Scrat [10]
There are 12 parts to the ratio (1 + 3 + 8 = 12).
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4 0
3 years ago
What is 2 plus 2 minus 1 plus 1267788 minus 1000
harina [27]

2 + 2 - 1 + 1267788 - 100

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5 0
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Read 2 more answers
P= ? , r=4%, t=3 months, I=$20
Scilla [17]
<span>Answer:

P = $ 2,000.00

Equation:
P = I / rt
Calculation:
First, converting R percent to r a decimal
r = R/100 = 4%/100 = 0.04 per year,
putting time into years for simplicity,
3 months ÷ 12 months/year = 0.25 years,
then, solving our equation

P = 20 / ( 0.04 × 0.25 ) = 2000
P = $ 2,000.00

The principal required to
accumulate interest of $ 20.00
on a rate of 4% per year for 0.25 years (3 months) is $ 2,000.00.
</span>
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