1)
-3x + 4 = -10 + 5$-7-x$ -3x + 4 = -10 - 35 - 5x
-3x + 4 = -45 - 5x
-3x + 5x = -45 - 4
2x = -49
x = -49/2
x = -24.5

2)
x/2 + x/4 = -3/2
Multiply every term by 4 to get rid of the fractions:
4$x/2$ + 4$x/4$ = 4$-3/2$ 2x + x = -6
3x = -6
x = -6/3
x = -2