Question

me ajudem por favor​

Answer 1

a)

-3x=-9-4x-2

4x-3x=-11

x=-11

b)

350x=100x+750+500

350x-100x=1250

250x=1250

x=$\frac{1250}{250}$

x=5

c)

x=3,87-5,41

x=-1,54