[ 8x+4=3( 3c 1 ) +7; 8x=3( 3c 1 ) +7 4; x= 3( 3c 1 ) +3 8 #160;; x= 9c 3+3 8 #160;; x= 9c 8 ...

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Linear Equation in 2 Variables

Solve: 8x+4=...

Question

Solve:
$8 x + 4 = 3 (3 c - 1) + 7$

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Solution

$\begin{matrix} 8 x + 4 = 3 (3 c - 1) + 7 8 x = 3 (3 c - 1) + 7 - 4 x = \frac{3 (3 c - 1) + 3}{8} x = \frac{9 c - 3 + 3}{8} x = \frac{9 c}{8} \end{matrix}$
Hence, $x = \frac{9 c}{8}$

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