Question

a) 7(r-12) =3 (6+2k)
b) 4(9-k)=3(6+2k)
c) 10(x-1)=9(3-x)
d)4(x-8)=3(x-17)
precisa da conta completa

Answer 1

a) 7k+84 = 18+6k
7k-6k = 18+84
k = 102

b) 36-4k=18+6k
-4k+6k= 18-36
2k=-18
k=-9

c) 10x-10=27-9x
10x+9x=27+10
19x=37
x=1,94

d) 4x-32=3x-51
4x-3x=-51+32
x=-19