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spin [16.1K]
4 years ago
14

Which of the two is correct? Explain why, including pointing out any mistakes that were made.

Mathematics
1 answer:
Norma-Jean [14]4 years ago
4 0
The correct way to solve this equation would be:
7=5+3(x-4)
Distribute the Brackets.
3*x=3x
3*4=12
7=5+3x-12
Add like terms.
7=-7+3x
Add 7 to both sides.
(7)+7=(-7+3x)+7
14=3x
Divide both sides by 3.
(14)/3=(3x)/3
4.6667 or 14/3 =x

Both answers are incorrect.
Some the significant mistakes:
-Didn't follow BEDMAS
-How did 7=8(x-4) turn into 78=x-4?

Hope this helps.
-Benjamin
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Answer below

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Large numbers like 100 billion are cumbersome to write out in ordinary form (100,000,000,000) and so scientists use a shorthand notation called powers of ten. ... The exponent tells you how many times ten is to be multiplied by iteslf to equal the number you wish to write. For example, 100 can be written as 10x10 = 102.

Hope this helps!

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How do I choose a method then find the product for 70x55?
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Step-by-step explanation:

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3 years ago
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so ur equation is : y = 7x - 5 <==
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