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Arbetsblad: Ekvationer
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Ekvationer
Nivå 3 · Parenteser och bråk
Namn
Klass
Lös ekvationerna.
1.
4
(
x
+
1
)
=
22
4(x + 1) = 22
4
(
x
+
1
)
=
22
x
=
x =
x
=
2.
2
(
x
−
8
)
=
−
24
2(x - 8) = -24
2
(
x
−
8
)
=
−
24
x
=
x =
x
=
3.
5
(
x
−
2
)
=
−
45
5(x - 2) = -45
5
(
x
−
2
)
=
−
45
x
=
x =
x
=
4.
5
(
x
−
5
)
=
3
(
x
−
1
)
5(x - 5) = 3(x - 1)
5
(
x
−
5
)
=
3
(
x
−
1
)
x
=
x =
x
=
5.
4
(
x
−
3
)
=
2
(
x
−
2
)
4(x - 3) = 2(x - 2)
4
(
x
−
3
)
=
2
(
x
−
2
)
x
=
x =
x
=
6.
3
(
x
−
3
)
=
5
(
x
−
5
)
3(x - 3) = 5(x - 5)
3
(
x
−
3
)
=
5
(
x
−
5
)
x
=
x =
x
=
7.
x
8
−
3
=
−
12
\frac{x}{8} - 3 = -12
8
x
−
3
=
−
12
x
=
x =
x
=
8.
x
5
+
8
=
6
\frac{x}{5} + 8 = 6
5
x
+
8
=
6
x
=
x =
x
=
9.
x
+
3
5
=
x
−
4
6
\frac{x + 3}{5} = \frac{x - 4}{6}
5
x
+
3
=
6
x
−
4
x
=
x =
x
=
10.
x
+
9
4
=
x
−
6
5
\frac{x + 9}{4} = \frac{x - 6}{5}
4
x
+
9
=
5
x
−
6
x
=
x =
x
=
Facit
Ekvationer · Nivå 3 · Parenteser och bråk
1.
x
=
4,5
x = 4{,}5
x
=
4
,
5
2.
x
=
−
4
x = -4
x
=
−
4
3.
x
=
−
7
x = -7
x
=
−
7
4.
x
=
11
x = 11
x
=
11
5.
x
=
4
x = 4
x
=
4
6.
x
=
8
x = 8
x
=
8
7.
x
=
−
72
x = -72
x
=
−
72
8.
x
=
−
10
x = -10
x
=
−
10
9.
x
=
−
38
x = -38
x
=
−
38
10.
x
=
−
69
x = -69
x
=
−
69
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