Question

a) X+6=18
b) X–7=25
c) 3X=102
d)3X+2=47
e) 2X–9=17
f)2X(X+1)=16
me ajudem pf

Answer 1

A)
X + 6 = 18
x = 18 - 6
x = 12

b)
x – 7 = 25
x = 25 + 7
x = 32

c)
3x = 102
x = 102/3
x = 34

d)
3x + 2 = 47
3x = 47 - 2
3x = 45
x = 45/3
x = 15

e)
2X – 9 = 17
2x = 17 + 9
2x = 26
x = 26/2
x = 13

f)
2.(x + 1) = 16
2x + 2 = 16
2x = 16 - 2
2x = 14
x = 14/2
x = 7