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Grace [21]
3 years ago
7

Solve the equations PLEASEE -1=3x-2 -3x=9 -10=-5x

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
6 0

Answers are in bold:

-1=3x-2

add 2 to both sides

-1+2=3x-2+2

1=3x

divide both sides by 3

1÷3=3x÷3

1/3=x

-3x=9

divide both sides by -3

-3x÷-3=9÷-3

x=-3

-10=-5x

divide both sides by -5

-10÷-5=-5x÷-5

2=x

I hope this is good enough:

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Find the value of x in the equation x⁄ 4 + x⁄14 + x⁄17 = 71
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Hello from MrBillDoesMath!

Answer:

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Discussion:

Each term contains "x" so factoring it out gives

x( 1/4 + 1/14 + 1/17)  = 71       (*)

Use common factor (17*14*4  = 952) as the denominator to combine terms:

1/4 =  (17*14)/ 952  = 238/952

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Substituting in (*) gives

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x = (71 * 476)/181                       => 71* 476 =33769

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Thank you,

MrB

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