alleScieriS alleScieriS 01-12-2016 Mathematics contestada 1. y - 5/3 =1 2. Combine like terms: -21a + 16a 3. Simplify the expression: 9a - b - 2a - 10b 4. 5(x + 10) + x 5. -4n + 7 + 2n = 1 Thanks for everything!!