a) x = -4
b)a = -2
c) x = 3
d) m = 6
e) 8 · x + 7 = 15
x = 1
f) -4 · h + 5= 29
h = -6
g) x = -7
h) c = 4
j) s =
k) x = 4
i) x = 5
l) k = 5
a) 2 · x + 5 = -3 / - 5
2 · x = -8 / : 2
x = -4
b)-7 · a - 3 = 11 / + 3
-7 · a = 14 / : (-7)
a = -2
c) 5 + 6 · x = 23 / - 5
6 · x = 18 / : 6
x = 3
d) 2 · m – 4 = 8 / + 4
2 · m = 12 / : 2
m = 6
e) 8 · x + 7 = 15 / - 7
8 · x = 8 / : 8
x = 1
f) -4 · h + 5= 29 / - 5
-4 · h = 24 / : (-4)
h = -6
g) 3 · x + 2 = -19 / - 2
3 · x = -21 / : 3
x = -7
h) 6 · c – 10 = 14 / + 10
6 · c = 24 / : 6
c = 4
j) 5 · s – 9 = -6 / + 9
5 · s = 3 / : 5
s =
k) 15 =7 - 2 · x / - 7
8 = 2 · x / : 2
x = 4
i) 8 · x + 3 = 43 / - 3
8 · x = 40 / : 8
x = 5
l) 6 · k + 3 =33 / - 3
6 · k = 30 / : 6
k = 5