Question

1) Resolva as equações, sendo U = Q: G)2× +1=4× -7
H)9× +9 +3×=15
I)16× -1=12×+3
J)3× -2=4×+9
K)5× -3+×=2×+9
L)17×-7×=×+18

Answer 1

Resposta:

h)9x+9+3=15

9x=15-9-3

9x=3

x=3/9

x=0

i)16x-1=12x+3

16x-12x=3+1

4x=4

x=4/4

x=1

j)3x-2=4x+9

3x-4x=9+2

x=11

k)5x-3=2x+9

5x-2x=9+3

3x=12

x=12/3

x=4

l)17x-7=x+8

17x-x=8+7

16x=15

x=15/16

x=0