3x-5*2=8/20*100-7xx = ?
DAJE NAJ SZYBKO !
3x-5*2=8/20*100-7x
3x-10=8*5-7x
3x-10=40-7x
3x-7x=40+10
-4x=50 | :(-4)
-x=-12,5 | *(-1)
x=12,5
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3x-5*2=8/20*100-7x
3x-10=8*5-7x
3x-10=40-7x
3x-7x=40+10
-4x=50 | :(-4)
-x=-12,5 | *(-1)
x=12,5