Question

Resolva as equações

A) 5×-10=15

B ) 3×+1=x+9

Answer 1

a) 5x-10=15

5x = 15+10

5x = 25

5x = 25/5

x = 5

b) 3x+1=x+9

3x-x = 9-1

2x = 8

x = 8/2

x = 4

Answer 2

Oi...

a)

5x - 10 = 15

5x = 15 + 10

5x = 25

x = 25/5

x = 5

b)

3x + 1 = x + 9

3x - x = 9 - 1

2x = 8

x = 8/2

x = 4

Bons estudos.