Question

3x = 90
2x + 10 = 70
2x+80=3x
calcule o valor de x em cada um.​

Answer 1

3x= 90

x= 90/3

x= 30

2x+10= 70

2x= 70- 10

2x= 60

x= 60/ 2

x= 30

2x+80= 3x

2x-3x= 80

-1x= 80

x= 80/ -1

x= -80