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3 years ago

Simplify your answer as much as possible 2(2v-7)=18

Mathematics

2 answers:

Gwar [14]3 years ago

5 0

Answer:

2(2v-7)=18

4v-14=18

4v=32

v=8

Step-by-step explanation:

FinnZ [79.3K]3 years ago

3 0

Answer:

v = 8

Step-by-step explanation:

Expand

4v - 14 = 18

Rearrange

4v = 18 + 14

4v = 32

v = 8

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To find the equation we will put the values of x and y in the equations and then check if LHS=RHS.

$\large\red{\sf{y=3x-1}}$

$\begin{gathered}\\ \sf\longmapsto 9=3(1)-1\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto 9=3-1\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto 9≠2 \end{gathered}$

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$\begin{gathered}\\ \sf\longmapsto 9=5+4\end{gathered}$

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$\large\blue{\sf{y=-2x-8}}$

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$\begin{gathered}\\ \sf\longmapsto 9=-2-8\end{gathered}$

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Hence, Option B. y=5x+4 satisfies the system (1,9)

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2 years ago