-58 - 6x = 42 + 4x Pass the numbers with letter to the left and the numbers without letter to the right, changing the signal as they change sides. - 6x - 4x = 42 + 58 - 10x = 100 simplify by (-1) 10x = - 100 [tex]x = \frac{-100}{10} [/tex] [tex]\boxed{x = - 10}[/tex]
2)
37 + 5x = -2x - 33 Pass the numbers with letter to the left and the numbers without letter to the right, changing the signal as they change sides. 5x + 2x = - 33 - 37 7x = - 70 [tex]x = \frac{-70}{7} [/tex] [tex]\boxed{x = - 10}[/tex] 3)
27 - 9x = -6x - 39 Pass the numbers with letter to the left and the numbers without letter to the right, changing the signal as they change sides. - 9x + 6x = - 39 - 27 - 3x = - 66 simplify by (-1) 3x = 66 [tex]x = \frac{66}{3} [/tex] [tex]\boxed{x = 22}[/tex]
