Question

Resolva as equações

H) X+15=-4X

I) X-12=4X

J) 5X+2=2X-4

K) 2X+1=X+11

L)4X+9=3X+5

M)X+9+5X= -3+2X+7

Ñ)3.(X+2)+5=X+12

O)X+4.(X-1)=9-2(X+3)

P) 5.(3X-2)=2.(6-X+3)

Q) 2.(3X-1)+2.(3-X)=8

R)X-1.(X+1)=12-1(3X-2)

Answer 1

H)X+15=-4X
X+4X=-15
5X= -15
X=-15/5
X= -3

I)X-12= 4X
X-4X= 12
-3X=12
X=12/-3
X=-4

J)5X+2=2X-4
5X-2X=-4-2
3X= -6
X= -6/3
X= -2

L)4X+9=3X+5
4X-3X=5-9
X=-4

K)2X+1=X+11
2X-X= 11-1
X= 10

M)X+9+5X=-3+2X+7
X+5X-2X= -3+7-9
4X= -5
X= -5/4