Question

RESOLVA AS EQUAÇOES
7(X - 2) = 5 (X + 3 )
2(X - 5) + 4(X - 1) = 0
3(2X -1) = -2(X +3)
7(X - 1) - 2(X - 5) = X - 5
TRABALHO DE ESCOLA GENTEE !!
URGENTEEE

Answer 1

7(X - 2) = 5 (X + 3 )
7x - 14 = 5x +15
7x - 5x = 14+15
2x = 29
$x = \frac{29}{2}$
x = 14,5

2(X - 5) + 4(X - 1) = 0
2x -10 + 4x -4 = 0
2x + 4x = 10+4+0
6x = 14
$x = \frac{14}{6}$
(Simplificamos a divisão por 2)
$x = \frac{7}{3}$

3(2X -1) = -2(X +3)
6x - 3 = -2x + 3
6x + 2x = 3 + 3
8x = 6
$x = \frac{6}{8}$
(Simplificamos a divisão por 2 denovo)
$x = \frac{3}{4}$

7(X - 1) - 2(X - 5) = X - 5 
7x - 7 - 2x - 10 = x - 5
7x - 2x - x = 7 + 10 -5
4x = 12
$x = \frac{12}{4}$
x = 3