Question

resolva as equacoes
a.100.x-10=10x
b.2.x=-4.x-18
c.8.x-12=4.x-10
d.x-4=10
e.x-9=-9
f.y/3=5​

Answer 1

A.

100.×-10=10×

100×-10×=10

90×=10

×=90÷10

×=9

B.

2.×=4.×-18

2×=4×-18

2×-4×=-18

-2×=-18

×=-18÷2

×=-9

C.

8.×-12=4.×-10

8×-4×=-10+12

4×=2

×=4÷2

×=2

D.

×-4=10

×=10+4

×=14

E.

×-9=-9

×=-9+9

×=0

F.

y÷3= 5

y= 5.3

y= 15

Espero ter ajudado