Lineare Gleichungen 2
Löse die linearen Gleichungen durch Rückwärtsrechnen im Kopf
Löse die linearen Gleichungen durch Rückwärtsrechnen im Kopf
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Cartes-fiches
\(b + 6 = 8\)
b = 2
\(15 - g = 7\)
g= 8
\(\frac 2 3 + x = 2\)
x = 4/3
\(1,75 - r = 1,43\)
r = 0,32
\(a - 128 = 233\)
a = 361
\(k - \frac 1 4 = \frac 1 4\)
k= 1/2
\(z + 2,55 = 5,65\)
z = 3,1
\(3059 + x = 4000\)
x = 941
\(0 = 3 \cdot c -12\)
c = 4
\(22 = h - 10\)
h = 32
\(1,5 + y = \frac 5 2\)
y = 2
\(6d = 48\)
d = 8
\(5 x = 125\)
x = 25
\(3,5 = 7 v\)
v = 0,5
\(\frac 1 9 x = 1\)
x = 9
\(3 a = \frac 3 7\)
a = 1/7
\(0,2 \cdot d = 8\)
d = 40
\(\frac 1 3 k = 24\)
k = 72
\(4,5 = 9i\)
i = 0,5
\(p^2 = 144\)
p = 12
\(225 = 5 u\)
u = 45
\(3(x+1)= 9\)
x = 2
\(4 = \frac 1 2 (a - 2)\)
a = 10
\((z + 3) \cdot 2 = 10\)
z = 2
\(\frac 1 3 (3 + t) = 4\)
t = 9
\(7 (0,2 + f) = 3,5 \)
f = 0,3
\(0,25 \cdot (18 + h) = 5\)
h = 2
\((33 + y) \frac 1 {10} = 10\)
y = 77
\(1 = \frac 1 9 (d + 3)\)
d = 6
\((r + 1)^2 = 16\)
r = 3
