Question

r) 3(x + 1) + 2 = 5 + 2(x - 1)
s) 3(2x - 3) + x = 5
1)3x + 5 + 2x + 6= x + 27
u) 2 (x-1) 3(x + 1) = 40​

Answer 1

Resposta:

r) 3x + 3 + 2 = 5 + 2x - 2

3x + 5 = 3 + 2x

x = - 2

s) 6x - 9 + x = 5

7x = 14

x = 2

1) 3x + 5 + 2x + 6 = x + 27

5x + 11 = x + 27

4x = 16

x = 4