1). 5x-3x+7 = 3x-1
2x + 7 = 3x - 1
3x-2x=7+1
x=8
2)
[tex] 4r + \frac{2}{4} r + 14 = 5r - \frac{3}{4} r + 1 - 3\\ \\5r-4r-\frac{3}{4} r - \frac{2}{4} r = 14-1+3\\ \\r-\frac{5}{4}r =16\\ \\\frac{4}{4}r-\frac{5}{4}r =16\\ \\-\frac{1}{4}r=16\\ \\ r=-64 [/tex]
