1. Z danej równości wyznacz :a.
a) 2ax = 4 |:2x x równce : 0
b) x-a=6 |:-x
c) a/5=x
d) x/a= 3 a równe:0
e) x- 3/4 a= 9
f) 2a+4a/5= 2x
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a) 2ax = 4 |:2x
a= 2x/4
b) x-a=6 |:x
-a=6/x
a=-6/x
c) a/5=x|*5
a=5x
d) x/a= 3|*a
x=3a |:3
a= x/3