Question

Fazer as contas do exercicio 2 e 3

Answer 1

2)
I)  3X+100=2X+100+200
3X=2X=300-100
1X=200
X=200/1=200

III) 3X+500=1000+500+100
 3-X=1600-500
 2X=1100
X=1100/2=550

 3) 3X-7=2X+2
3X-2X=2+7
X=9

b)1+2x=99
2x=99-1
x=98/2
x=49
 Bjs... Boa sorrte