Oblicz:
a) 2x+5=x+7
b)5x-3=4x-6
a)
2x+5=x+7
2x-x=7-5
x=2
b)
5x-3=4x-6
5x-4x=-6+3
x=-3
2x + 5 = x + 7
2x - x = 7 -5
x = 2
5x - 3 = 4x - 6
5x-4x = -6 + 3
x = - 3
liczę na naj
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a)
2x+5=x+7
2x-x=7-5
x=2
b)
5x-3=4x-6
5x-4x=-6+3
x=-3
2x + 5 = x + 7
2x - x = 7 -5
x = 2
5x - 3 = 4x - 6
5x-4x = -6 + 3
x = - 3
liczę na naj