Question

a) (-2x+3y)+(9x-7y)
b)(-7x+2y-6)+(-3x-4y-5)
c) (-6x +10y) + (3x-2y)
d) (3m -7)+(5m+2)+(6m+4m)

Answer 1

Explicação passo-a-passo:

a) -2x +3y +9x -7y=

+7x -4y

b) -7x +2y -6 - 3x -4y -5=

-7x -3x +2y -4y -6 -5=

- 10x - 2y - 11

c) -6x +10y +3x -2y=

-6x +3x +10y -2y=

-3x +8y

d) 3m -7 +5m+2+ 6m +4m=

3m +5m +6m +4m - 7 +2=

18m - 5