Respuesta:
[tex]a) \: 25 + 10x - 5 = 5 - 2x \\ 20 + 10x = 5 - 2x \\ 20 - 5 = - 2x - 10x \\ 15 = - 12x \\ \frac{15}{ - 12} = x \\ \frac{5}{4} = x[/tex]
[tex]10 \div 2 - 3x = 8 \\ 5 - 3x = 8 \\ 5 - 8 = 3x \\ - 3 = 3x \\ \frac{ - 3}{3} = x \\ - 1 = x[/tex]
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Verified answer
Respuesta:
✔️a)
[tex]a) \: 25 + 10x - 5 = 5 - 2x \\ 20 + 10x = 5 - 2x \\ 20 - 5 = - 2x - 10x \\ 15 = - 12x \\ \frac{15}{ - 12} = x \\ \frac{5}{4} = x[/tex]
✔️b)
[tex]10 \div 2 - 3x = 8 \\ 5 - 3x = 8 \\ 5 - 8 = 3x \\ - 3 = 3x \\ \frac{ - 3}{3} = x \\ - 1 = x[/tex]
Espero que te ayude:)