a) \( 2(x+3)-5(2 x-1)=\frac{1}{5}+10 x \)
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To solve the equation \( 2(x+3)-5(2 x-1)=\frac{1}{5}+10 x \), let's start expanding and simplifying both sides. On the left side, distribute \(2\) and \(-5\): \[ 2x + 6 - 10x + 5 = \frac{1}{5} + 10x. \] Combining like terms on the left gives: \[ -8x + 11 = \frac{1}{5} + 10x. \] Now, let's get all the terms involving \(x\) on one side. Adding \(8x\) to both sides: \[ 11 = \frac{1}{5} + 18x. \] Subtracting \(\frac{1}{5}\) from both sides gives: \[ 11 - \frac{1}{5} = 18x. \] To combine, convert \(11\) into a fraction: \[ 11 = \frac{55}{5}, \] Thus, \[ \frac{55}{5} - \frac{1}{5} = \frac{54}{5}. \] Now, we have: \[ \frac{54}{5} = 18x. \] To isolate \(x\), divide both sides by \(18\): \[ x = \frac{54}{5} \div 18 = \frac{54}{90} = \frac{3}{5}. \] So the solution is: \[ x = \frac{3}{5}. \]