Question

respuesta de las ecuaciones
8x-(6x-9)+(3x-2)=4-(7x-8)
7(18-x)-6(3-5x)=-(7x+9)-3(2x+5)-12
x-(2x+1)=8-(3+3)
plisssss​

Answer 1

$8x - (6x - 9) +( 3x - 2) = 4 - (7x - 8) \\ 5x + 7 = 12 - 7x \\ 5x + 7x = 12 - 7 \\ 12x = 5 \\ \bf \: x = \frac{5}{12}$

...

$7(18 - x) - 6(3 - 5x) = - (7x + 9) - 3(2x + 5) - 12 \\ 126 - 18 - 30x = - 9 - 6x - 15 - 12 \\ 108 - 30x = - 36 - 6x \\ - 30x + 6x = - 36 - 108 \\ - 24x = - 144 \\ \bf \: x = 6$

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$x - (2x + 1) = 8 - (3 + 3) \\ x - 2x - 1 = 8 - 6 \\ - x - 1 = 2 \\ - x = 2 + 1 \\ - x = 3 \\ \bf \: x = - 3$