URGENT!DAU CORONITA+10 PUNCTE!
Rezolvati ecuatiile:
a)x + 3=25/8
b)x - 3/4=4/5
c) 7/9 + x=88/9
d)x+7/11=1
e) 36/49+x=1
f)19/35 +x=12/5
g)86/93+x=43/3
h)x - 1/2=9/2
i)23/4 - x =3/4
j)18/7 - x =1/8
Răspunsuri la întrebare
Răspuns:
Explicație pas cu pas:
a) x + 3 = 25 / 8
x = 25 / 8 - 3
x = 25 / 8 - 24 / 8
x = 1 / 8
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b) x - 3/ 4 = 4 / 5
x = 4 / 5 + 3 / 4
x = 16 / 20 + 15 / 20
x = 31 / 20
x = 1 intreg si 11 / 20
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c) 7 / 9 + x = 88 / 9
x = 88 / 9 - 7 / 9
x = 81 / 9
x = 9
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d) x + 7 / 11 = 1
x = 1 - 7 / 11
x = 11 / 11 - 7 / 11
x = 4 / 11
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e) 36 / 49 + x = 1
x = 1 - 36 / 49
x = 49 / 49 - 36 / 49
x = 13 / 49
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f) 19 / 35 + x = 12 / 5
x = 12 / 5 - 19 / 35
x = 84 / 35 - 19 / 35
x = 65 / 35
x = 13 / 7
x = 1 intreg si 6 / 7
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g) 86 / 93 + X = 43 / 3
X = 43 / 3 - 86 / 93
X = 1333 / 93 - 86 / 93
X = 1 247 / 93
X = 13 intregi si 38 / 93
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h) x - 1 / 2 = 9 / 2
x = 9 / 2 + 1 / 2
x = 10 / 2
x = 5
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i) 23 / 4 - x = 3 / 4
x = 23 / 4 - 3 / 4
x = 20 / 4
x = 5
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j) 18 / 7 - x = 1 / 8
x = 18 / 7 - 1 / 8
x = 144 / 56 - 7 / 56
x = 137 /56
x = 2 intregi si 25 / 56