October 2018 2 17 Report

Sprawdź, czy podana liczba spełnia dane równanie:

b) 2(a + 1) - 3(a - 5)= 7a
a= 2

c) 3x(x-5)=(x-2)(3x-3)
x= -1

d) 3/5 x- (7/9x-1/4) = 2-(x+3)/4
x=0


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