Question

Resolva as equações:

A) 5×-10=15

B) 3×+1=x+9

Answer 1

a) 5x= 15+10

5x=25

x=25

5

x=5

b)3x-x=9-1

2x=8

x=8

2

x=4

Answer 2

A) 5×-10=15

5x = 15 + 10

5x = 25

x= 25/5

x= 5

B) 3×+1=x+9

3x - x = 9 - 1

2x= 8

x= 8/2

x= 4