Question

calcule o X ( me ajudem)​

Answer 1

a) 5x-30= 3x+10

.....5x-3x=10-30

.......2x=-20

.......x=-20/2

.........x=-10

b)4x+10=2x+40

....4x-2x=+40-10

........2x=30

.........x=30/2

..........x=15

c)5x=x+100

....5x-x=100

......4x=100

.......x=100/4

.........x=25

espero ter ajudado