Question

1. Calcule:

a) 2x + 5 = 15

b) 7x – 5 = 2x

c) x – 1 = 9

d) 6x – 11 = 5x – 3​

Answer 1

Resposta: A) 5; B) 1; C)10; D)8

Answer 2

1. Calcule:

a) 2x + 5 = 15

2x = 15 - 5

2X = 10

X = 10

2

X=5

b) 7x – 5 = 2x

7X - 2X = 5

5x = 5

x = 5

5

X = 1

c) x – 1 = 9

X = 9 + 1

X = 10

1

X= 10

d) 6x – 11 = 5x – 3

6X - 5X = -3 + 11

11x = 8

x = 8

11

espero ter ajudado!

bom dia e bons estudos!:)