Question

A) X+3=5.

B) 3X+1=4.

C) 2X+2=10.

D) 2X+1=9.

E)X+1=1.

F) 3X+3=12.

G)2X+20=10.

H) 2X=18.

I) 3X=6+6.

J) 2X+5=7.

K) 4X+5=9.

Answer 1

A)x=2  B)x=1  C)x=4  D)x=4 E)x=0  F)x=3  G)x=-5  H)x=9  I)x=4  J)x=1 K)x=1

Answer 2

A) X+3=5 -> x=5-3 -> x=2

B) 3X+1=4 -> 3x = 4-1 -> 3x = 3 -> x=3/3 -> x=1

C) 2X+2=10 -> 2x = 10 -2 -> 2x = 8 -> x=8/2 -> x=4

D) 2X+1=9 -> 2x = 9-1 -> 2x = 8 -> x=8/2 -> x=4

E)X+1=1 -> x= 1-1 -> x=0

F) 3X+3=12 -> 3x = 12-3 -> 3x = 9 -> x=9/3 -> x=3

G)2X+20=10 -> 2x = 10-20 -> 2x = -10 -> x= -10/2 -> x= -5

H) 2X=18 -> x=18/2 -> x=9

I) 3X=6+6 -> 3x = 12 -> x=12/3 -> x=4

J) 2X+5=7 -> 2x = 7-5 -> 2x =2 -> x=2/2 -> x=1

K) 4X+5=9 -> 4x = 9-5 -> 4x = 4 -> x=4/4 -> x=1

Espero ter ajudado.