1) (x + 4) : 5 + 6 = 7 /: 5
x + 4 + 30 = 35
x = 35 - 34
x = 1
2) 7(2x -14) - 5(x - 18) = -4(3 - 2x)
14x - 98 - 5x + 90 = -12 + 8x
9x - 8x = - 12 + 8
x = -4
3) 1/2x - 2 = (2x - 3) : 2 / : 2
x - 1 = 2x - 3
- x = - 2 / • (-1)
x = 2
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