Question

1) Resolva: a) 2 ( x + 3) = 30 b) 7x + 5 ( x - 2) + 3 (x +4) = 0 c) 10 - x = x + 6 d) 5x - 4 = 10 (importante!)

Answer 1

A) x=12
B) x=22/15
C) x=2
D) 14/5