Question

Agora, simplifique as expressões a seguir.
a) 7(x - 3) + 2x + 1
b) 2(3x – 1) - 7
3
c) 2x - 4y + 3 - 158 + 6y​

Answer 1

Resposta:

vc pega o 7x.(-21)+3x

7x.3x-21

21x-21= 0x

b)6x-2-7

6x=9

x=9/6= 1,5

c) 2x-4y+6y+3-158

2x-2y+155=155xy