Question

Encontre as raízes das equações do 1º Grau:
a) 2X+8X=50

B) 3X-X=80

C)2Y-Y=7

D) 4X-8=4

E) 5X+15X=45

F) 6Y-6=0

G) 10X+10X=100

H)X+7X=16

Answer 1

Resposta:

A) 2x+8x=50

50=10x

x=50/10

x=5

B) 3x-x=80

80=2x

x=80/2

x=40

C)2y-y=7

7=y

y=7

D)4x-8=4

4x=+8+4

x=12/4

x=3

E)5x+15x=45

20x=45

x=45/20

x=2,25

F)6y-6=0

6y=+6+0

y=6/6

y=1

G)10x+10x=100

20x=100

x=100/20

x=50

H)x+7x=16

8x=16

x=16/8

x=2

Explicação passo-a-passo: