Question

Resolva:

a) X\2 + 4 X = 15 - ( - X - 6 )

b) 2 ( 2 X - 4 ) = 5 - ( X\2 + 4 )

Answer 1

a) X+8x/2= 30-(2x-12)/2 X+8x=30+2x+12 9x-2x=42 7x=42 X=42/7 X=6 B) 2(2x-4)=5-(x/2+4) 4x-8=5-x/2-4 4x+x/2=1+8 8x+1x/2 =9 8x+x=18 9x=18 X=2