1)
[tex]6 x + 2 = 20 - 3x \\ 6x + 3x = 20 - 2 \\ 9x = 18 \\ x = 2[/tex]
2)
[tex]4x - 2x = 6 - 2x \\ 4x = 6 \\ x \times \frac{3}{2} [/tex]
3)
[tex]9x - 12 = 6 + 3x \\ 9x - 3x = 6 + 12 \\ 6x = 18 \\ x = 3[/tex]
ahí está espero que se sirva!!!
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1)
[tex]6 x + 2 = 20 - 3x \\ 6x + 3x = 20 - 2 \\ 9x = 18 \\ x = 2[/tex]
2)
[tex]4x - 2x = 6 - 2x \\ 4x = 6 \\ x \times \frac{3}{2} [/tex]
3)
[tex]9x - 12 = 6 + 3x \\ 9x - 3x = 6 + 12 \\ 6x = 18 \\ x = 3[/tex]
ahí está espero que se sirva!!!