Question

Simplifique as expressões algébricas.
a) 6(x – 1) + 3( x + 5)=
d) 2 (x +10 ) - 3 (5 - x) =
b) 10(x + 2) -3 (x +2) =
e) 8 ( x + 4) + 8 -4(2x - 3)
c) 12(x + 5) + 3 (x +10)=

Answer 1

Resposta:

a) 6(x – 1) + 3( x + 5)=

$6x - 6 + 3x + 15 \\ 9x + 9$

b) 10(x + 2) -3 (x +2) =

$10x + 20 - 3x + 6 \\ 7x + 26$

c) 12(x + 5) + 3 (x +10)=

$12x + 60 + 3x + 30 \\ 15x + 90$

d) 2 (x +10 ) - 3 (5 - x) =

$2x + 20 - 15 + 5x \\ 7x + 5$

e) 8 ( x + 4) + 8 -4(2x - 3)

$8x + 32 + 4 \times (2x - 3) \\ 8x + 32 + 8x - 12 \\ 16x + 20$