Question

ayuda es para hoy
9x+8=7x+6
x-8=2x-11
4x+3=3x+5
x+1=2x-7
7x+9=3+9x

Answer 1

1=:x=66/7
2:x=3
3: x=2
4:: x=91/2
5 : x=3

Answer 2

Respuesta:

8 + 9 x == -8 + 13 x == 3 - 42 x == 1 + 8 x == 9 - 47 x == 3 + 9 x

Explicación paso a paso:

{x = 4, x = 1/5, x = 1/25, x = 8/55, x = 3/28}

{x == 4, x == 1/5, x == 1/25, x == 8/55, x == 3/28}

{9 x + 8 = 13 x - 8, 13 x - 8 = -3 (14 x - 1), -3 (14 x - 1) = 8 x + 1, 8 x + 1 = 9 - 47 x, 9 - 47 x = 3 (3 x + 1)}

Factor[{8 + 9 x == -8 + 13 x, -8 + 13 x == 3 - 42 x, 3 - 42 x == 1 + 8 x, 1 + 8 x == 9 - 47 x, 9 - 47 x == 3 + 9 x}]

{8 + 9 x == -8 + 13 x, -8 + 13 x == -3 (-1 + 14 x), -3 (-1 + 14 x) == 1 + 8 x, 1 + 8 x == 9 - 47 x, 9 - 47 x == 3 (1 + 3 x)}