Question

Calcule as equações: *
A) 2x + 6=16
B)5x - 2 =8
C)4x + 7=3X + 19

Answer 1

Resposta:

A) 2x + 6=16

2x = 16 -6

2x = 10

X = 10 ÷ 2

X = 5

B)5x - 2 =8

5x = 8 + 2

5x = 10

X = 10 ÷ 5

X = 2

C)4x + 7=3X + 19

4x -3x = 19 - 7

X = 12

ESPERO TER AJUDADO.

Answer 2

Resposta:

A)x=5

B)x=2

C)x=12

CÁLCULOS:

2x+6=16

2x=16-6

2x=10

10/

x=5

5x-2=8

5x=+2

5x10

10/5

x=2

4x+7=3x+19

4x-3x=-7+19

1x=+12

x=12