Question

resolva as equações a) 5x-2 (x+4)=11b) 12+3x-5 (2x-1)=2-3x

Answer 1

a) 5x-2(x+4)=11
5x-2x-8=11
3x=11+8
3x=19
x=19/3

b)12+3x-5(2x-1)=2-3x
12+3x-10x+5=2-3x
3x-10x+3x=2-12-5
-4x=-15
x= 15/4