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Dmitry [639]
3 years ago
6

Solve the system using substitution and describe your steps x = y - 3 2x + y = 12

Mathematics
2 answers:
omeli [17]3 years ago
6 0

Answer:

2x + y = 12  = x + y = 6

Step-by-step explanation:

2x + y = 12

divide 2 by 12

x + y = 6  

this os all I really under stand lol sorry!

barxatty [35]3 years ago
4 0

Answer:

y=6 and x=3

Step-by-step explanation:

y-3= 6-3 gives you x=3

2x=2x3=6+y=6+6=12

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3 years ago
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Option C

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<em><u>Solution:</u></em>

Given that we have to simplify the expression shown below

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<em><u>Steps to follow:</u></em>

Move the decimal point in your number until there is only one non-zero digit to the left of the decimal point. The resulting decimal number is a.

Count how many places you moved the decimal point. This number is b.

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If you moved the decimal to the right b is negative.

If you did not need to move the decimal b = 0.

Write your scientific notation number as a x 10^b and read it as "a times 10 to the power of b."

Remove trailing 0's only if they were originally to the left of the decimal point.

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