Odpowiedź:
a) -3 x - 7 = 1 - 5 x
-3 x + 5 x = 1 + 7
2 x = 8 / : 2
x = 4
========
b ) 4*(x + 2) + 3 = 5 -2 x
4 x + 4*2 + 3 = 5 - 2 x
4 x + 11 = 5 -2 x
4 x +2 x = 5 - 11
6 x = - 6 / : 6
x = - 1
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Verified answer
Odpowiedź:
a) -3 x - 7 = 1 - 5 x
-3 x + 5 x = 1 + 7
2 x = 8 / : 2
x = 4
========
b ) 4*(x + 2) + 3 = 5 -2 x
4 x + 4*2 + 3 = 5 - 2 x
4 x + 11 = 5 -2 x
4 x +2 x = 5 - 11
6 x = - 6 / : 6
x = - 1
======
Szczegółowe wyjaśnienie: