Question

3) Resolva as equações, sendo U = Q. a)4 ( x + 3 ) = 20 b)5 ( 2x - 1 ) = 2 ( x + 4) c)10 - 2 ( x + 3 ) = 8 + 3 ( 2x + 5 ) d)2x - 3 ( 4 - x ) = 5 + 4 ( 2x + 1 ) e)6x - 7 ( 1 - x ) - ( 10x + 4 ) = 0 f)12 - x - ( 2x - 3 ) = - x + 2 ( 4 + x) g)4 ( x + 1 ) + 18 = 5 ( x + 2 ) - 3 h)3x + 4 ( 2x - 1 ) = 5 - 2 ( x - 4 ) - 3 ( 5x - 1 )

Answer 1

4x+12=20 b) 10x-5=2x+8 c) 10 -2x -6= 8+ 6x+15 d) 6x-5=10x-4 4x=20-12 8x=13 10-15-6=6x+2x