Odpowiedź:
[tex]a)\\\\4x-3(3x-5)=6x+4\\\\4x-9x+15=6x+4\\\\-5x-6x=4-15\\\\-11x=-11\ \ /:(-11)\\\\x=1\\\\\\b)\\\\8-(4x-12)=8x-(3x-2)\\\\8-4x+12=8x-3x+2\\\\20-4x=5x+2\\\\-4x-5x=2-20\\\\-9x=-18\ \ /:(-9)\\\\x=2[/tex]
[tex]c)\\\\\frac{5}{4}(1-x)-\frac{1}{4}=\frac{3}{4}(x-4)+3\\\\\frac{5}{4}-\frac{5}{4}x-\frac{1}{4}=\frac{3}{4}x-3+3\\\\1-\frac{5}{4}x=\frac{3}{4}x\\\\-\frac{5}{4}x-\frac{3}{4}x=-1\\\\-2x=-1\ \ /:(-2)\\\\x=\frac{1}{2}\\\\\\d)\\\\7(x+2)-x=5(x-2)\\\\7x+14-x=5x-10\\\\6x-5x=-10-14\\\\x=-24[/tex]
