A) k=7n; n b)a=k + 6; k c)z=7-y; y d)d=a+bc; c e)x=2k + 1; k f)2k=7n+5; n

A) k=7n; n n= k/7 b)a=k + 6; k k=a-6 c)z=7-y; y y=7-z d)d=a+bc; c c= (d-a) / b e)x=2k + 1; k k= (x-1) / 2 f)2k=7n+5; n n= (2k-5) / 7

A) k=7n; /:7 n=k/7 b)a=k + 6; k=a-6 c)z=7-y; z-7=-y/- y=7-z d)d=a+bc; d-a=bc/; c=d-a/b e)x=2k + 1; k x-1=2k/:2 k=x-1/2 f)2k=7n+5; n 2k-5=7n/:7 n=2k-5/7

A) k=7n; n k=7n/:7 k:7=n B) a=k+6;k a-6=k C) z=7-y; y z=7-y/:7 z:7=-y/*(-1) -(z:7)=y D)d=a+bc; c d-a=bc/:b d-a:b=c E)x=2k + 1; k x-1=2k/:2 x-1:2=k F)2k=7n+5; n 2k-5=7n/:7 2k-5:7=n