Holt McDougal Larson Pre-Algebra Common Core Edition page 781 number 28

Eleven minus 4 times a number is equal to 6 plus the number.

(11-4)x =6+x

(11-4)x=6+x

(7)(x)

7x=6+x

7x-x=6+x-x

6x=6

6x/6=6/6

x=1