Question

Resolva as equações a seguir:

a) 5 (2x-1) + 3 (2x +3) + 12 = 0

b) 2 (x - 6) + (-x + 1) = -5 (2 + x)

Answer 1

a) 10x-5+6x+9+12=0
10x+6x=5-9-12
16x=5-21
16x=-6.(-1)
x=6/16 simplifica
x=2/8 simplifica
x= 1/4

b) 2x-12-x+1=-10-5x
2x-x+5x=-10+12-1
6x=12-11
6x=1
x=1-6
x=-5.(-1)
x=5

Answer 2

a- x=[-1]
b- x=1/6
essa