Rozwiąż równanie i podaj jego rozwiązanie 2(5 + 3x) - 4 = 21 + 2(x + 0,5)
10 + 6x - 4 = 21 +2x +1
6x-2x=21+1-10+4
4x=16/4
x=4
2(5 + 3x) - 4 = 21 + 2(x + 0,5)
10+6x-4=21+2x+1
4x=16|:4
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10 + 6x - 4 = 21 +2x +1
6x-2x=21+1-10+4
4x=16/4
x=4
2(5 + 3x) - 4 = 21 + 2(x + 0,5)
10+6x-4=21+2x+1
4x=16|:4
x=4