[tex]a)3( \times - 5) + 4 = 7 \\ 3x - 15 + 4 = 7 \\ 3x = 7 + 15 - 4 \\ 3x = 22 - 4 \\ 3x = 18 \\ x = [/tex]
[tex]b)4( \times - 3) + 4 = 7 \\ 4x - 12 + 4 = 7 \\ 4x = 7 + 12 - 4 \\ 4x = 19 - 4 \\ 4x = 15 \\ x = \frac{15}{4} [/tex]
[tex]c) |2x - 12| = 0 \\ 2x = 12 \\ x = 6[/tex]
[tex]d)2x + 5 = 18 \\ 2x = 18 - 5 \\ 2x = 13 \\ x = \frac{13}{2} [/tex]
