como q faz isso aq??? me ajudem plss
2x+3=9
3x+7=x+3
5+6x=5x+2
2-3x=-2x+12-3x
7x-4-x=-2x+8-3x
2 (x+1) - (x-1)=0
13+4 (2x -1)=5(x+12)
4(x+5)+3(x+5)=21
8(x-1)=8-4(2x-3)
2(x+5)-3(5-x)=10
4x -1=3(x-1)
Soluções para a tarefa
Resposta:
. 2x+3=9 . 3x +7 = x +3 . 5+6x = 5x+2 .2-3x = 2x +12 - 3x
2x= 9-3 3x - x = 3-7 6x-5x = 2-5 -3x-2x+3x = 12-2
2x= 6 2x = -4 x = -3 -2x= 10
x=6/2 x = -4/2 x = -5
x=3 x= -2
. 7x -4 -x = -2x + 8 -3x .2(x+1) - (x-1)=0 .13 + 4.(2x-1) = 5(x+12)
6x +5x = 8+4 2x+2=x-1 13 + 8x-4=5x+60
11x=12 2x-x= -1-2 8x-5x= 60-9
x= 11/12 x = -3 3x = 51
x= 51/3
.8x-8=8-8x-12 .2x+10-15+3x=10 . 4x-1=3x-3
16x=-4+8 5x=15 x=-2
x= 4/16= 1/4 x=3