Question

a ) x - 3 = 9

b ) 4x+-9 = 1 - 2x

c ) x+5=20 - 4x

d ) 9x - 4x +10 = 7x - 30


me ajudem !

Answer 1

a) x-3=9
x=9+3
x=12

b)4x+2x=1+9
6x=10
x=10/6

c)x+4x=20-5
5x=15
x=3

d)5x-7x=-10-30
-2x=-40
x= 20

Espero ter ajudado :)