1) Resolva:
A) 4n+16/4 - n/2= 6=n
B) 2k + 4/5 - k-10/ 6= 2
C) c/3 + 2c + 2/4= 3c + 7
(DEIXE O CALCULO)
URGENTE!!!!!! 90 pts !!!!!!!!!!!
A) 4n+16/4 - n/2= 6=n
B) 2k + 4/5 - k-10/ 6= 2
C) c/3 + 2c + 2/4= 3c + 7
(DEIXE O CALCULO)
URGENTE!!!!!! 90 pts !!!!!!!!!!!
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(4*4n)/4 + (16/4) -(2*n/4) = 6 + n =>
16n + 16 -2n = 4*(6+n) = >
16n + 16 - 2n = 24 + 4n = >
16n -2n -4n = 24 - 16 = >
10n = 8 =>
n = 8/10 = 4/5
b) 2k + 4/5 - k - 10/6 = 2 =>
(30* 2k/30) + (6*4/30) -(30*k/30) - (5*10/30) = 2 =>
60k/30 + 24/30 -30k/30 - 50/30 = 2 =>
60k + 24 - 30k - 50 = 2 * 30 =>
30 k = 60 + 26 =>
k = 86/30 = 43/15
C) c/3 + 2c + 2/4= 3c + 7 =>
(4*c/12) + (12*2c/12) + (3*2/12) = 3c + 7 = >
4c + 24c + 6 = 12*(3c + 7) = >
28c + 6 = 36c + 84 = >
28c - 36c = 84 - 6 = >
-8c = 78 = >
c = -78/8 = -39/4