Question

calcule o valor de × nas equações

A)4×-2×=20

B)2×+×=25+5

C)6×=30+3×

D)3×=40-10

E)2×-5=-2×+43

F)3×-×=44
​

Answer 1

Explicação passo-a-passo:

A)4×-2×=20

4x-2x=20

2x=20

x=20/2

x= 10

B)2×+×=25+5

2x+x= 25+5

3x=30

x=30/3

x= 10

C)6×=30+3×

6x-3x=30

3x=30

x=30/3

x= 10

D)3×=40-10

3x=30

x=30/3

x=10

E)2×-5=-2×+43

2x+2x=43+5

4x=48

x=48/4

x=12

F)3×-×=44

3x-x=44

2x=44

x=44/2

x= 22

Answer 2

Resposta:

A)10

B)10

C)10

D)10

E)16

F)22

Explicação:

A)4x - 2x=20

2x=20

x=20/2

x=10

B)2x + x=25+5

3x=30

x=30/3

x=10

C)6x =30 + 3x

6x - 3x =30

3x=30

x=30/3

x=10

D)3x = 40 -10

3x =30

x=30/3

x=10

E)2x - 5 = 2x + 43

2x + 2x =43+5

4x=48

x=48/4

x=16

F)3x -x =44

2x =44

x=44/2

x=22

Espero ter ajudado !!

Bons estudos! :)