Question

DETERMINE X
a) 6 x = 2x + 16
b) 2 x - 5 = x + 1
c) 2 x + 3 = 3 + 4
d) 5 x + 7 = 3x + 10
e) 4 x - 7 = 8 x - 2
f) 2 x + 1 = 4x - 7
g) 9 x + 9 + 3x = 15
h) 16 x -1 = 12 x mais 3
i) 9 x - 2 = 4x + 9

Answer 1

a)6x=2x+16
6x - 2x=16
4x=16
x =16/4
x=4

b)2x -5 = x +1
2x-×=5 +1
x=6

2x+3=3+4
2x=7-3
2x =4
x=2 assim são as outras...