Solve 7(2k +4)- (3k+1)=49
7(2k+4)- (3k+1)=4914K+28- (3k+1)=4914k+28 -3k -1=4911k +27=4911k=22K=2
7(2k+4)-(3k+1)=4914k+28-3k-1=4911k+27=4911k=22k=2