Question

calcule as equações a)4×-10=2×+2
b)2×+1=4×-7
c)3×-2=4×+9
d)5×+4=3×-2×+4
e)×+×-4=17-2×+1
f)7(×-2)=5(×+3)
g)7(×-1)-2(×-5)=×-5
alguém me ajuda com essas questões?​

Answer 1

Explicação:

a)4×-10=2×+2

4x-10=2x+2

4x-2x=2+10

2x=12

x=12/2

x=6

b)2×+1=4×-7

2x-4x=-7-1

-2x=-8

x=-8/-2

x=4

c)3×-2=4×+9

3x-4x=9+2

-x=11

x=11/-1

x=-11

d)5×+4=3×-2×+4

5x+4=x+4

5x-x=4-4

4x=0

x=0/4

x=0

e)×+×-4=17-2×+1

2x-4=-2x+17+1

2x-4=-2x+18

2x+2x=18+4

4x=22

x=22/4

x=22÷2/4÷2

x=11/2

f)7(×-2)=5(×+3)

7x-14=5x+15

7x-5x=15+14

2x=29

x=29/2

g)7(×-1)-2(×-5)=×-5

7x-7-2x+10=x-5

5x-7+10=x-5

5x+3=x-5

5x-x=-5-3

4x=-8

x=-8/4

x=-2

Espero ter ajudado!

Answer 2

Resposta:

a)4x-2x=2+10

2x= 12

x=6

b) 2x-4x=-7-1

2x=-8

x=-4

c) 3x-4x=9+2

-x=11

d)4x=0

e)4x=22

x=0,18

f)7x-14-5x+15

2x=+14-15

x=-0,5

g)7x-7-2x+10=x-5

4x=-8

x=-2