Question

a)-×=3+5
b)-2×+20=10

Answer 1

a)
-x= 3 + 5
-x = 8 (x -1)
x = -8

b)
-2x+20=10
-2x = 10-20
-2x = -10 (x -1)
2x = 10
x= 10/2
x = 5


Espero ter ajudado!!!