Cancel 5x: -2(x-2)=-7-7.
expand: -(2x-4)=-7-1.
simplify: -2x+4=-8
substitute number: -2(6) + 4=-8
answer: 6
6 students received an A.
30 multiplied by .2 (you change percent to decimal) is 6.
Expressions equivalent would be 6b + 8 - b.
2/5
since 10/5 is 2, you would also divide 4 by 2