Question

Resolva as equações:

a) 16X -1 = 12X +3

b) 9X +9 +3X= 15

c) 2X +1 = 4X -7

d) 4X -10 = 2X +2

Answer 1

1)16x-1=12x+3
16x-12x= 3+1
4x=4
x=4/4
x=1


2) 9x+9+3x=15
9x+3x=15-9
12x=6
x=6/12
x=1/2

3) 2x+1=4x-7
2x-4x=-7-1
-2x=-8 ( .-1 )
x=8/2
x=4

4)4x-10=2x+2
4x-2x= 2+10
2x=12
x=12/2
x=6



Espero ter te ajudado! Bons estudos!

Answer 2

a) 16x -1 = 12x +3
16x- 12x= +1 +3
4x = 4
X=4/4
X=+1

b) 9x +9 +3x = 15
9x +3x = 15 -9
12x = 6
X= 12/6
X= +2

c) 2x +1 = 4x -7
2x -4x = -7 -1
2x = -8
X=-8/2
X=-4

d) 4x -10 = 2x +2
4x -2x = +10 +2
2x = 12
X=12/2
X= +6