Bonjour,
3x + 2 + 5x + 3 = 5x - 3 + x + 9
8x + 5 = 6x + 6
8x - 6x + 5 = 6x - 6x + 6
2x + 5 - 5 = 6 - 5
2x = 1
[tex]\frac{2x}{2} = \frac{1}{2}[/tex]
[tex]x = \frac{1}{2}[/tex]
4x - 5(x - 3) = 7 - (4x - 2)
4x - 5x + 15 = 7 - 4x + 2
-x + 15 = -4x + 9
-x + 15 + 4x = -4x + 4x + 9
3x + 15 - 15 = 9 - 15
3x = -6
[tex]\frac{3x}{3} = \frac{-6}{3}[/tex]
[tex]x = -2[/tex]
x - 7(3x - 5) = 2x - 5(2 - 3x)
x - 21x + 35 = 2x - 10 + 15x
-20x + 35 = 17x - 10
-20x + 20x + 35 + 10 = 17x + 20x - 10 + 10
45 = 37x
[tex]\frac{37x}{37} = \frac{45}{37}[/tex]
[tex]x = \frac{45}{37}[/tex]
[tex]\frac{20}{100}x + \frac{3x}{50} + \frac{24}{25} = x[/tex]
[tex]\frac{20}{100}x + \frac{6x}{100} + \frac{96}{100} = x[/tex]
[tex]\frac{26}{100}x + \frac{96}{100} = x[/tex]
[tex]26x + 96 = 100x[/tex]
[tex]100x - 26x = 96[/tex]
74x = 96
[tex]x = \frac{96}{74}[/tex]
[tex]x = \frac{48}{37}[/tex]
[tex]\frac{5x - 8}{6} = \frac{3x + 7}{2}[/tex]
2(5x - 8) = 6(3x + 7)
10x - 16 = 18x + 42
18x - 10x = -42 - 16
8x = -58
[tex]x = \frac{-58}{8}[/tex]
[tex]x = \frac{-29}{4}[/tex]
