Aktiviteter 5

5.1)

Løs likningene.

a)
3 + x 4 5 = 2x 3
b)
2 + 2x 3 + 4 = x 3 2 7
c)
x 7 20 + x = x + 2 3 + 11
d)
21 + 2x 5 + 12 = 22 2x 3
e)
3x 8 + 13 2x = 12 + 3x 16
f)
23 3x + 4x 1 3 = 9 + 21x 4

a)
3 + x 4 5 = 2x 3
b)
2 + 2x 3 + 4 = x 3 2 7
c)
x 7 20 + x = x + 2 3 + 11
d)
21 + 2x 5 + 12 = 22 2x 3
e)
3x 8 + 13 2x = 12 + 3x 16
f)
23 3x + 4x 1 3 = 9 + 21x 4

5.2)

Løs likningene.

a)
x(7 5) = 4
b)
2(x 1) = 6
c)
3(x + x) = 12
d)
3 (1 2 x) = 2(x + 1)
e)
4(2x + 5) = 5x + 38
f)
12 (x 3 + 2x 4 ) = 5(3x 20)
g)
2 5 + 10x 1 = 3(3x 2)
h)
6x (4 2 3) = 9(3x + 7)

a)
x(7 5) = 4
b)
2(x 1) = 6
c)
3(x + x) = 12
d)
3 (1 2 x) = 2(x + 1)
e)
4(2x + 5) = 5x + 38
f)
12 (x 3 + 2x 4 ) = 5(3x 20)
g)
2 5 + 10x 1 = 3(3x 2)
h)
6x (4 2 3) = 9(3x + 7)

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