Rozwiąż równanie A.-5x-5=5 b.1 x+4=-6 2 c.7-2x=7x-2 D.2 (6x-9)=12 3
A: -5x-5=5 , -5x=5+5, -5x=10 /:(-5), x=-2
B: 1x+4=-6, 1x=-10
C: 7-2x=7x-2, 7x+2x=7+2, 9x=9 /:9, x=1
D: ------
A.-5x-5=5
-5x=5+5
-5x=10/:(-5)
x=2
B. x+4=-6
x=-6-4
x=-10
C.7-2x=7x-2
-2x-7x=-2-7
-9x=-9/:(-9)
x=1
D. 2(6x-9)=12
12x-18=12
12=12+18
12x=30/:12
x=2,5
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A: -5x-5=5 , -5x=5+5, -5x=10 /:(-5), x=-2
B: 1x+4=-6, 1x=-10
C: 7-2x=7x-2, 7x+2x=7+2, 9x=9 /:9, x=1
D: ------
A.-5x-5=5
-5x=5+5
-5x=10/:(-5)
x=2
B. x+4=-6
x=-6-4
x=-10
C.7-2x=7x-2
-2x-7x=-2-7
-9x=-9/:(-9)
x=1
D. 2(6x-9)=12
12x-18=12
12=12+18
12x=30/:12
x=2,5