Question

efetuar adicao e subtracao com monomios
efetue
a)(+7x)+(-3x)=
b)(-8x)+(+11x)
c)(-2y)+(-3y)

Answer 1

a) 7x - 3x = 4x
b) -8x + 11x = 3x
c) -2y - 3y = 5y

Answer 2

a)(+7x)+(-3x)=

7x - 3x

(7 - 3)x

4x

b)(-8x)+(+11x)

- 8x + 11x

(- 8 + 11)x

3x

c)(-2y)+(-3y)

- 2y - 3y

(- 2 - 3)y

- 5y