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x/4 = 2,7 |*4
x = 10,8
B)
2,4-x = 7
-x = 7-2,4
-x = 4,6 /*(-1)
x = -4,6
C)
2x-10 = x
2x-x = 10
x = 10
x=4*2,7
x=10,8
b)2,4-x=7
x=2,4-7
x=-4,6
c)2x-10=x
x=10
spr.
4x = 10,8 :4
x = 2,7
b) 2,4 + 7 = x
9,4 = x
c) 2x - 10 = x + 10
2x = x + 10 - x
x = 10