Question

Resolva:

a) 2x + (x + 4) = 16
b) y + 32 + 5y = y = -8
c) 62x = 31 + 2x - 14
d) -3x + 25 - 12x = 68
e) 2 (x+1) + 15 = 3x + 19
f) 8x - 2 (1 + x) = 3x + 12 + 15

Answer 1

a) 2x + (x + 4) = 16
3x+4=16
3x=16-4
3x=12
x=4
b) y + 32 + 5y = y = -8
?????????????????????????
c) 62x = 31 + 2x - 14
62x-2x=31-14
60x=17
x=17/60
d) -3x + 25 - 12x = 68
-3x-12x=68-25
-15x=33
x=-33/15
e) 2 (x+1) + 15 = 3x + 19
2x+2+15=3x+19
2x-3x=19-15-2
-x=2
x=-2
f) 8x - 2 (1 + x) = 3x + 12 + 15
8x-2-2x=3x+27
8x-2x-3x=27+2
3x=29
x=29/3