Rozwiąż . :) Na podstawie tego przykładu :
2-x=5-2x
-x+2x= 5-2
ze sprawdzeniem :DD
A) . 4(x+12) - 3 = 9 x - 25
B). 3X +JEDNA SIÓDMA + 2X
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A) . 4(x+12) - 3 = 9 x - 25
4x + 48 - 3 = 9x - 25
4x - 9x = -25 + 3 - 48
-5x = -70 /:(-5)
x = 14
Spr.
L = 4 *14 + 48 - 3 = 101
P = 9*14 - 25 = 101
B). 3x - 2x = 1/7
x = 1/7
Spr.
P = 3*1/7 - 2*1/7 = 3/7 - 2/7 = 1/7
L = 1/7