Question

seleccionar correctamente con procedimiento

Answer 1

$a)5x = 8x - 15 \\ 15 = 8x - 5x \\ 15 = 3x \\ 5 = x$

$b)4x + 1 = 2 \\ 4x = 2 - 1 \\ 4x = 1 \\ x = \frac{1}{4}$

$c)15x + 18 = 30x + 15 \\ 18 - 1 5= 30x - 15x \\ 3 = 15x \\ \frac{3}{15} = x \\ \frac{1}{5} = x$

$d)2x - 10 = 6x - 50 \\ - 10 + 50 = 6x - 2x \\ 40 = 4x \\ \frac{40}{4} = x \\ 10 = x$

$e)6x - (2x + 1) = - [ - 5x + (2x + 1)] \\ 6x - (2x + 1) = - ( - 5x + 2x + 1) \\ 6x - 2x - 1 = 5x - 2x - 1 \\ 4x - 1 = 3x - 1 \\ 4x - 3x = - 1 + 1 \\ x = 0$

$f)2x - [x - (x - 50)] = x - (800 - 3x) \\ 2x - (x - x + 50) = x - (800 - 3x) \\ 2x - 50 = x - 800 + 3x \\ 2x - 50 = 4x - 800 \\ - 50 + 800 = 4x - 2x \\ 750 = 2x \\ \frac{750}{2} = x \\ 375 = x$