NA DZISIAJ PROSZĘ!
a) 3x-1=20
b)5x=48 + 3x
c)2x-3=x+3
d)2x+7=13-8
e)7x+4=3x+20
f)9x+10=4x+25
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a) 3x = 21
x =7
b) 2x=48
x=24
c)
x=6
d)2x=-2
x=-1
e)4x=16
x=4
f)5x=15
x=3
a)
3x = 20 + 1
3x = 21 / : 3
x = 7
b)
5x - 3x = 48
2x = 48 / : 2
x = 24
c)
2x-x = 3+3
x=9
d)
2x=13-8-17
2x = -2 / : 2
x = -1
e)
7x - 3x = 20 - 4
4x = 16 /: 4
x = 4
f)
9x-4x=25-10
5x=15 /: 5
x = 3