a) x+ 4,2= 1¹/₅ x=1,2-4,2 x=-3 -4-x=-7 -x=-7+4 -x=-3 x=3 b) -9,75+x=-2½ x=-2,5+9,75 x=7,25 -2⅔* (razy) x=-19⅓ -2⅔x=-19⅓ x=7,25 c) 2,4*x=-1⅗ 2,4x=-1,6 x=-⅔ x+5⅓=6 x=6-5⅓ x=⅔ różne rozwiązania d) x:( -1¾) = 1⅓ x=1⅓*(-1¾) x=-2⅓ 7⅙-x=9½ -x=9½-7⅙ -x=2⅓ x=-2⅓
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a)
x+ 4,2= 1¹/₅
x=1,2-4,2
x=-3
-4-x=-7
-x=-7+4
-x=-3
x=3
b)
-9,75+x=-2½
x=-2,5+9,75
x=7,25
-2⅔* (razy) x=-19⅓
-2⅔x=-19⅓
x=7,25
c)
2,4*x=-1⅗
2,4x=-1,6
x=-⅔
x+5⅓=6
x=6-5⅓
x=⅔
różne rozwiązania
d)
x:( -1¾) = 1⅓
x=1⅓*(-1¾)
x=-2⅓
7⅙-x=9½
-x=9½-7⅙
-x=2⅓
x=-2⅓