rozwiąż równanie.
a)3(2x+3)-5(x-2)-4(x+7)=3
6x + 9 - 5x + 10 - 4x - 28 = 3
-3x -9 = 3
-3x = 3 + 9
-3x = 12 / :(-3)
x = -4
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a)3(2x+3)-5(x-2)-4(x+7)=3
6x + 9 - 5x + 10 - 4x - 28 = 3
-3x -9 = 3
-3x = 3 + 9
-3x = 12 / :(-3)
x = -4