Question

simplifique as expressões algébricas:

A- 9x - 5+6 -2x

B- 5x + 8 - 3x + 1

C- 3. (2-x) + 7x

D- 2. (5+3x) + 3 . (5x-4)

Answer 1

A) 9x-2x-5+6 = 7x+1

B) 5x+8-3x+1 = 2x+9

C) 3(2-x)+7x = 6-3x+7x = 4x+6

D) 2(5+3x)+3(5x-4) = 10+6x+15x-12 = 21x-2