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Alenkasestr [34]
3 years ago
5

If RT=36, find the value of x

Mathematics
1 answer:
Talja [164]3 years ago
8 0

Answer:

4

Step-by-step explanation:

So we know that RT is 36.

Note that RT is the combined length of RS and ST. Therefore:

RT=RS+ST

Substitute. RT is 36, RS is 6x+1 and ST is x+7:

36=(6x+1)+(x+7)

Combine like terms and add:

36=7x+8

Subtract 8 from both sides:

28=7x

Divide by 7:

x=4

So, our answer is 4 :)

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Answer:

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Step-by-step explanation:

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Answer:

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Use the substitution method to solve the system of equations. Choose the correct ordered pair. x + y = 11 -x = -y - 9
suter [353]
x+y=11 \\
-x=-y-9 \\ \\
\hbox{substitute the second equation by -1} \\ \\
x+y=11 \\
x=y+9 \\ \\
\hbox{substitute y+9 for x in the first equation} \\ \\
y+9+y=11 \\
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x=y+9 \\
x=1+9 \\
x=10 \\ \\
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The answer is B.
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