Boa tarde!
a)
[tex]10x + 13 = 11x + 17 \\ 10x - 11x = 17 - 13 \\ - x = 4 \: \: \: \: \: \: . \: ( - 1) \\ \boxed{x = - 4}[/tex]
b)
[tex] - 4x = 5x - 27 \\ - 4x - 5x = - 27 \\ - 9x = - 27 \: \: \: \: \: \: . \: ( - 1) \\ 9x = 27 \\ x = \frac{27}{9} \\ \boxed{x = 3}[/tex]
c)
[tex]4x - 7 = x + 8 \\ 4x - x = 8 + 7 \\ 3x = 15 \\ x = \frac{15}{3} \\ \boxed{x = 5}[/tex]
Att. NLE Top Shotta
