Question

1 ) Resolva as seguintes equações

a) 2x +5 -5x = -1
b)5+6x=5x+2
c)x+2x-1-3=x
d)-3x+10=2x+8+1
e)5x-5+x=9+x
f)7x-4-x=-7x+8-3x
g)-x-5+4x=-7x+6x+15
h)3x-2x=3x+2

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Answer 1

Resposta:

A: 2×+5-5=-1

2×=1

×=2÷1

×=2

B:5+6×=5×+2

6×+5×=5+2

11×=7

×=11÷7

×=1,8333333333

C:×+2×-1-3=×

×+2×-×÷1-3

2×=2

×=2÷2

×=1

D:-3×+10=2×+8+1

3×+2×=10+8+1

5×=19

×=19÷5

×=3,8

E:5×-5+×=9+×

5×-×=5+9

4×=14

×=14÷4

×=3,5

F:7×-4-×=-7×+8-3×

7×-×-7×-3×=8-4

6×-7×=4

-1×=4

×=4÷1

×=4

G:-×-5+4×=-7×+6×+15

×-4×-7×+6×=5+15

-3×-7×+6×=20

-4×+6×=20

10×=20

×=20÷10

×=2

H:3×-2×=3×+2

3×-2×+2×=3

-1×+2×=3

3×=3

×=3÷3

×=1

ESPERO TER AJUDADO BOM ESTUDOS