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Deffense [45]
3 years ago
11

Please help isolate x in x+3y=1

Mathematics
2 answers:
Evgesh-ka [11]3 years ago
8 0
Subtract 3y and move it to the right
X= 1 - 3Y
Alexeev081 [22]3 years ago
6 0
I think it’s X=1-3y
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3 years ago
Work out the value of z, given that x+y=42 and x/13=y/8=z/9.
Andru [333]

Answer:

z = 18

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Step-by-step explanation:

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x + y = 42

\dfrac{x}{13}=\dfrac{y}{8}=\dfrac{z}{9}

Rewrite  x + y = 42  to make y the subject:

\implies y=42-x

Substitute this into \dfrac{x}{13}=\dfrac{y}{8}:

\implies \dfrac{x}{13}=\dfrac{42-x}{8}

Cross multiply:

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\implies 21x=546

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\implies 26 + y = 42

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\implies \dfrac{16}{8}=\dfrac{z}{9}\\\\\implies 2=\dfrac{z}{9}\\\\\implies 18=z

4 0
3 years ago
How do i round <br> $191.2392
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Step-by-step explanation:

its round is 200.0000 .

hope it will help you Mark with brilliant

3 0
3 years ago
Read 2 more answers
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