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4x - 162 + 6x = 48
10x = 48 + 162
10x= 210/ :10
x= 21 ( odpowiedz.)
4x+(27-x)*(-6)=-48
4x + (-162) + 6x = 48
4x - 162 + 6x = 48 /+162
4x + 6x = 210
10x = 210 /:10
x = 21