Set up equation and solve a ) if i take three forth of a number and aad 3 to it, i get 21 (b) aad four to eight time a number u get 60
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Answered by
1
Step-by-step explanation:
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Answered by
0
Answer:
a)24
b)7
Step-by-step explanation:
a) let the number be C
(3/4)C + 3 =21 by multiplying through by the L.C.M which is equal to 4 we get 3C + 12 = 84
3C=84-12=72
C=72/3
C=24
b)let the number be D
4+8D=60
8D=60-4
8D=56
D=56/8
D=7
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