Math, asked by glosssy, 1 month ago

Solve the equations

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Answers

Answered by bhim76
0

Step-by-step explanation:

a)

7+3v=6(3+v) \\ 7+3v=18+6v  \\ 7+3v-6v=18  \\ 7-3v=18   \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \\ -3v=18-7  \:  \:  \:  \:  \:  \:  \:  \\ v=\frac{11}{-3}=-\frac{11}{3} \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:

b)

\frac{ 2x-4  }{ 8x+1  }  = \frac{ 3  }{ 7  } \\ 7\left(2x-4\right)=3\left(8x+1\right)  \\ 14x-28=3\left(8x+1\right)  \\ 14x-28=24x+3  \\ 14x-28-24x=3  \\ -10x-28=3  \\ -10x=3+28 \\ -10x=31  \\ x=\frac{31}{-10}  \\ x=-\frac{31}{10}

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