Question

1) 7x-5=3(x+2)
2)2.(3x-8)=3x+5
3)4(x-1)+3(x+5)=2x+41
4)5x-11+2.(2x+3)=2x+9


Les agradecería mucho si me ayudaran

Answer 1

Hola! :)


1.
$7x - 5 = 3(x + 2) \\ \\ 7x - 5 = 3x + 6 \\ \\ 7x - 3x = 6 + 5 \\ \\ 4x = 11 \\ \\ x = \frac{11}{4}$

2.
$2(3x - 8) = 3x + 5 \\ \\ 6x - 16 = 3x + 5 \\ \\ 6x - 3x = 5 + 16 \\ \\ 3x = 21 \\ \\ x = \frac{21}{3} = 7$

3.
$4(x - 1) + 3(x + 5) = 2x + 41 \\ \\ 4x - 4 + 3x + 15 = 2x + 41 \\ \\ 7x + 11 = 2x + 41 \\ \\ 7x - 2x = 41 - 11 \\ \\ 5x = 30 \\ \\ x = \frac{30}{5} = 6$

4.
$5x - 11 + 2(2x + 3) = 2x + 9 \\ \\ 5x - 11 + 4x + 6 = 2x + 9 \\ \\ 9x - 5 = 2x + 9 \\ \\ 9x - 2x = 9 + 5 \\ \\ 7x = 14 \\ \\ x = \frac{14}{7} = 2$